Widal test is used for the diagnosis of typhoid fever. Enteric or typhoid fever is a Salmonella typhi bacterial infection. Understand the symptoms and reasons to perform this particular test. Widal Test rates in India: https://www.medifee.com/tests/widal-test-cost/
Views: 91946 MediFee.com
The Widal test is one method that may be used to help make a presumptive diagnosis of enteric fever, also known as typhoid fever. In 1896 and named after its inventor, Georges-Fernand Widal, is a presumptive serological test for enteric fever or undulant fever whereby bacteria causing typhoid and malaria fever are mixed with a serum containing specific antibodies obtained from an infected SUBSCRIBE TO My Channel: Watch my more video: https://www.youtube.com/channel/UCh_HZKnkDaF-qJ68DjpxuNA Now Follow Facebook: https://www.facebook.com/raoof.ansari.7169 Fallow on Tweeter: https://twitter.com/RaoofLa Fallow on Instagram: https://www.instagram.com/ansariraoof/ Thanks For Watching: #Widal #Typhoid #Vitro #Salmonella tanupath TANUPATH
Views: 1146 Tanu Path
The final part of a short series on urinalysis interpretation, including microscopy of casts and crystals.
Views: 148517 Strong Medicine
Find out how health professionals use short-hand for labs and the meaning of normal ranges. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai. Watch the next lesson: https://www.khanacademy.org/science/health-and-medicine/lab-values/v/what-s-inside-of-blood?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine Missed the previous lesson? https://www.khanacademy.org/science/health-and-medicine/infectious-diseases/malaria/v/preventing-malaria?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine Health & Medicine on Khan Academy: No organ quite symbolizes love like the heart. One reason may be that your heart helps you live, by moving ~5 liters (1.3 gallons) of blood through almost 100,000 kilometers (62,000 miles) of blood vessels every single minute! It has to do this all day, everyday, without ever taking a vacation! Now that is true love. Learn about how the heart works, how blood flows through the heart, where the blood goes after it leaves the heart, and what your heart is doing when it makes the sound “Lub Dub.” About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Health & Medicine channel: https://www.youtube.com/channel/UC1RAowgA3q8Gl7exSWJuDEw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 384180 khanacademymedicine
Widal test is still a common way of diagnosing enteric fever cases in several countries. Although tube agglutination is the standard, some manufacturers have adapted it for slide agglutination. This video shows qualitative as well as quantitative test on a kit that can be used for both slide as well as tube agglutination. Procedure displayed here is as per manufacturer's directions. Procedure of tube agglutination test varies across kits. Kits designed exclusively for tube agglutination have different procedures.
Views: 652428 Sridhar Rao
LIKE US ON FACEBOOK : fb.me/Medsimplified BUY USING AFFILIATE LINKS : AMAZON US--- https://goo.gl/XSJtTx AMAZON India http://goo.gl/QsUhku FLIPKART http://fkrt.it/Wiv8RNNNNN FLIPKART MOBILE APP http://fkrt.it/Wiv8RNNNNN A Coombs test (also known as Coombs' test, antiglobulin test or AGT) is either of two clinical blood tests used in immunohematology and immunology. The two Coombs tests are the direct Coombs test (DCT, also known as direct antiglobulin test or DAT), and the indirect Coombs test (also known as indirect antiglobulin test or IAT). The direct Coombs test is used to test for autoimmune hemolytic anemia; i.e., a condition of a low count of red blood cells (aka RBCs) caused by immune system lysis or breaking of RBC membranes causing RBC destruction. In certain diseases or conditions, an individual's blood may contain IgG antibodies that can specifically bind to antigens on the RBC surface membrane, and their circulating RBCs can become coated with IgG alloantibodies and/or IgG autoantibodies. Complement proteins may subsequently bind to the bound antibodies and cause RBC destruction. The direct Coombs test is used to detect these antibodies or complement proteins that are bound to the surface of red blood cells; a blood sample is taken and the RBCs are washed (removing the patient's own plasma) and then incubated with anti-human globulin (also known as "Coombs reagent"). If this produces agglutination of RBCs, the direct Coombs test is positive, a visual indication that antibodies (and/or complement proteins) are bound to the surface of red blood cells. The indirect Coombs test is used in prenatal testing of pregnant women and in testing blood prior to a blood transfusion. It detects antibodies against RBCs that are present unbound in the patient's serum. In this case, serum is extracted from the blood sample taken from the patient. Then, the serum is incubated with RBCs of known antigenicity; that is, RBCs with known reference values from other patient blood samples. If agglutination occurs, the indirect Coombs test is positive. The two Coombs tests are based on the fact that anti-human antibodies, which are produced by immunizing non-human species with human serum, will bind to human antibodies, commonly IgG or IgM. Animal anti-human antibodies will also bind to human antibodies that may be fixed onto antigens on the surface of red blood cells (also referred to as RBCs), and in the appropriate test tube conditions this can lead to agglutination of RBCs. The phenomenon of agglutination of RBCs is important here, because the resulting clumping of RBCs can be visualised; when clumping is seen the test is positive and when clumping is not seen the test is negative. Common clinical uses of the Coombs test include the preparation of blood for transfusion in cross-matching, screening for atypical antibodies in the blood plasma of pregnant women as part of antenatal care, and detection of antibodies for the diagnosis of immune-mediated haemolytic anemias. Examples of alloimmune hemolysis Hemolytic disease of the newborn (also known as HDN or erythroblastosis fetalis) Rh D hemolytic disease of the newborn (also known as Rh disease) ABO hemolytic disease of the newborn (the indirect Coombs test may only be weakly positive) Anti-Kell hemolytic disease of the newborn Rh c hemolytic disease of the newborn Rh E hemolytic disease of the newborn wikipidea https://en.wikipedia.org/wiki/Coombs_test Watch Again https://youtu.be/4MJA8Wzp2XM Subscribe https://www.youtube.com/channel/UCOmrniWfKi-uCD6Oh6fqhgw -~-~~-~~~-~~-~- CHECK OUT NEWEST VIDEO: "Nucleic acids - DNA and RNA structure " https://www.youtube.com/watch?v=0lZRAShqft0 -~-~~-~~~-~~-~-
Views: 282226 MEDSimplified
Syphilis is a disease caused by infection with the spirochete Treponema pallidum and serologic techniques play a major role in the diagnosis and follow-up of this disease. Dr. Matthew Binnicker explains the serological testing algorithms and interpretation for syphilis. Presenter: Matt Binnicker, PhD
Views: 10975 Mayo Clinic Laboratories
Dr Prabhat Agrawal Associate Professor Hospital Panchkuia Nalband churaha Ashok Nagar Agra These videos are for informational purposes only.Never delay in seeking treatment from your doctor.These videos are not a substitute for professional medical advice and treatment. Each case has an individualized treatment plan
Views: 148528 Dr Ruchika Garg
Widal test is a blood test which detects Enteric fever (Typhoid fever and Paratyphoid fever)The Widal test measures the titres of antibody against the bacteria which cause Enteric fever. What is Typhoid Fever? Typhoid fever is a type of Enteric fever and results due to infection of the intestine by bacteria. The two types of Enteric fever are: Typhoid fever - It is caused by a bacteria Salmonella enterica serotype Typhi (S. Typhi). Paratyphoid fever - It is caused by bacteria Salmonella enterica serotypes Paratyphi A (S.Paratyphi A), Paratyphi B (S. Paratyphi B) or Paratyphi C (S. Paratyphi C). How Does the Fever Spread? The Typhoid fever spreads through the ingestion of contaminated food and water. What are the Symptoms of the Fever The following are the symptoms of Typhoid fever: High fever Stomach pain Headache Tiredness Weight Loss Diarrhea or Constipation What should be done if you have the symptoms? In case you have the above symptoms, consult a doctor. How is the basis of the Widal Test? Widal test is an agglutination test that detects antibodies (agglutinins) in a blood sample against two antigens (O & H) of bacteria, Salmonella enterica. Agglutination refers to the visible clumping of particles when a particulate antigen combines with its antibody in the presence of optimum conditions for antigen-antibody reaction. Widal test should only be performed after the first week, as an antibody against “O” and “H” antigens of Salmonella start appearing in the serum at the end of the first week of fever. It is preferable to test two blood samples at an interval of 7 to 10 days to demonstrate rising antibody titres. How is the Widal Test done? A blood sample is taken from your vein to do the WIdal Test wherein it can be done by the following two methods Slide agglutination method Tube agglutination method When the Widal test is performed in a test tube, it is called Tube agglutination and when it is carried out on a slide, it is called Slide agglutination. Widal test by Tube agglutination is recommended over Slide agglutination method. The antigens used in the test are “H” and “O” antigens of Salmonella Typhi and “H” antigen of S. Paratyphi. What does the test mean? Active typhoid infection is confirmed if the test shows the following Titre of 1:80 or more for O agglutination 1:160 or more for H agglutination A rise in titres (4-fold or more) in the two blood samples taken 10 days apart confirms the diagnosis. When can the test be false? In the early stages of the infection, the Widal test may give a false negative result. False-positive result may be seen due to past infections or vaccination Do not take medicine without consulting your physician. #widal_test #typhoid fever #typhoid_treatment Please visit https://www.1mg.com/labs/test/widal-test-1970 for more information. Subscribe to our channel for more videos and get answer to your queries: http://bit.ly/Subscribe_1mg Connect with us on:- Facebook: https://www.facebook.com/1mgOfficial Linkedin: https://www.linkedin.com/company/5230742 Twitter: https://twitter.com/1mgofficial Visit our website at https://www.1mg.com
Views: 3269 1mg
Widal test In 1896 and named after its inventor, Georges-Fernand Widal, is a presumptive serological test for enteric fever or undulant fever whereby bacteria causing typhoid and malaria fever are mixed with a serum containing specific antibodies obtained from an infected individual. In cases of Salmonella infection, it is a demonstration of the presence of O-soma false-positive result. Test results need to be interpreted carefully to account for any history of c fever, typhoid vaccination, and the general level of antibodies in the populations in endemic areas of the world. Typhidot is the other test used to ascertain the diagnosis of typhoid fever. As with all serological tests, the rise in antibody levels needed to perform the diagnosis takes 7–14 days, which limits its applicability in early diagnosis. Other means of diagnosing Salmonella typhi (and paratyphi) include cultures of blood, urine and faeces. These organisms produce H2S from thiosulfate and can be identified easily on differential media such as bismuth sulfite agar. 2-mercaptoethanol is often added to the Widal test. This agent more easily denatures the IgM class of antibodies, so if a decrease in the titer is seen after using this agent, it means that the contribution of IgM has been removed leaving the IgG component. This differentiation of antibody classes is important as it allows for the distinction of a recent (IgM) from an old infection (IgG). The Widal test is positive if TO antigen titer is more than 1:160 in an active infection, or if TH antigen titer is more than 1:160 in past infection or in immunized persons. A single Widal test is of little clinical relevance due to the high number of cross-reacting infections, including malaria. If no other tests (either bacteriologic culture or more specific serology) are available, a fourfold increase in the titer (e.g., from 1:40 to 1:640) in the course of the infection, or a conversion from an IgM reaction to an IgG reaction of at least the same titer, would be consistent with a typhoid infection. A new serological test called the Tubex test is neither superior nor better performing than the Widal test. Therefore, Tubex test is not recommended for diagnosis of typhoid fever. join with us: https://www.facebook.com/mtjmbd email us at: [email protected] watch our other video tutorials: Technique/ Procedure of Widal Test https://www.youtube.com/watch?v=pF28SaGEPjA Operating details of Short Wave Diathamy (SWD) https://www.youtube.com/watch?v=kP3wt49Sig4&t=2s Blood Group Procedure https://www.youtube.com/watch?v=jv2HzC0LFzE Calibration procedure in Automatic Biochemistry analyzer(Dimension) https://www.youtube.com/watch?v=PIjVRlDtIw0&t=2s How can you setup new dr list into CBC Cell Counter https://www.youtube.com/watch?v=bGLBNkPkRx8 How can make a CBC report by using Cell Counter machine https://www.youtube.com/watch?v=N_nni3KKoGQ Procedure of serum Bilirubin (total).new tutorial.using biotrade reagent. https://www.youtube.com/watch?v=GUj_CVWOsLA Procedure of urine culture https://www.youtube.com/watch?v=9I6_zsAvO1Y&t=9s Procedure of Creatinine Test https://www.youtube.com/watch?v=9xCP7pCY0Zw How can you performed ESR in Caretium auto machine https://www.youtube.com/watch?v=_g7Co-pAdv8&t=73s A to Z about the PHYSIOTHERAPY with practical https://www.youtube.com/watch?v=7bWXHihztII&t=4s
Views: 903 Medical Technology Job Market
A complete animated video for introduction, principle, procedure and interpretation of Coomb's test both direct and indirect. For more, subscribe my new channel https://www.youtube.com/channel/UCB88x_9Ndp38KLGVYg0yZpw
Views: 5902 Talha Raza
There are two types of salmonella, which causes typhoid and paratyphoid fever. Brief explanation of the topic is given in the video.
Views: 3667 phanindra gupta
Hello my sweet friends. Kaise hain aap log. Friends aaj maine aap sab ko widal test lagane ka sahi procedure bataya hai. Friends agar aap sab ko meri ye video pasand aaye to like jaroor kare aur shear bhi jaroor kare. Mere channel ko subscribe jaroor karen. Tanki main apne sabhi friends ke liye aur bhi achhi achhi video up lode karun. In last so so thanks friends.
Views: 241529 ravi tiwari
Introduction to basic medical laboratory works. On this video you learn how to do pcv and widal test. -~-~~-~~~-~~-~- Please watch: "NIGERIAN ARMY TRAINING EXCERCISE PART 28 " https://www.youtube.com/watch?v=DQOY8RfvCWU -~-~~-~~~-~~-~-
Views: 1380 Omokoshaban TV
Widal Test is an agglutination test which detects the presence of serum agglutinins (H and O) in patients serum with typhoid and paratyphoid fever. The Widal test is one method that may be used to help make a presumptive diagnosis of enteric fever, also known as typhoid fever keep watching video for more detail Track: Fareoh - Under Water [NCS Release] Music provided by NoCopyrightSounds. Watch: https://youtu.be/xzyRoshFFaA Free Download / Stream: http://ncs.io/UnderWaterYO
Views: 14458 Dr fun dot com
The Widal test is a presumptive serological test for enteric fever or undulant fever whereby bacteria causing typhoid fever are mixed with serum containing specific antibodies obtained from an infected individual. In case of Salmonella infections, it is a demonstration of the presence of O-soma false-positive result. Test results need to be interpreted carefully in the light of past history of enteric fever, typhoid vaccination, and the general level of antibodies in the populations in endemic areas of the world. Typhidot is the other test used to ascertain the diagnosis of typhoid fever. As with all serological tests, the rise in antibody levels needed to perform the diagnosis takes 7–14 days, which limits it applicability in early diagnosis. Other means of diagnosing Salmonella typhi (and paratyphi) include cultures of blood, urine and faeces. These organisms produce H2S from thiosulfate and can be easily identified on differential media such as Bismuth sulfite agar. Often 2-mercaptoethanol is added to the Widal test. This agent more easily denatures the IgM class of antibodies, so if a decrease in the titer is seen after using this agent, it means that the contribution of IgM has been removed leaving the IgG component. This differentiation of antibody classes is important; as it allows for the distinction of a recent (IgM) from an old infection (IgG). This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 51028 Audiopedia
For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Source of all articles published in description is Wikipedia. Thanks to original content developers. Link- http://en.wikipedia.org/wiki/Main_Page This video tutorial talks about different immunological assays and antibody test methods and their importance in clinical biology. It also explains different features of antigen antibody reactions and their role in identifying diseases.
Views: 14952 Shomu's Biology
Welcome to Harib Diagnostic lab we are providing Diagnostic Facilities Hematology Micro Bilogy Bio Chemistry Elisa Typhoid test fever temperature# Blood test , Harib Diagnostic Lab https://youtu.be/3j4pogYdSqY Causes S. typhi is spread through contaminated food, drink, or water. If you eat or drink something that is contaminated with the bacteria, the bacteria enter your body. They travel into your intestines, and then into your blood. The bacteria travel through the blood to your Lymph nodes, Gallbladder, Liver, spleen, and other parts of the body. Some persons become carriers of S. typhi and continue to release the bacteria in their stools for years, spreading the Disease. Typhoid fever is common in developing countries. Fewer than 400 cases are reported in the U.S. each year. Most cases in the U.S are brought in from other countries where typhoid fever is common. Symptoms Early symptoms include fever, general ill-feeling, and abdominal pain. High fever (103°F, or 39.5°C) or higher and severe diarrhea occur as the disease gets worse. Some people with typhoid fever develop a rash called "rose spots," which are small red spots on the abdomen and chest. Other symptoms that occur include: Abdominal tenderness Agitation Bloody stools Chills Difficulty paying attention (attention deficit) Delirium Fluctuating mood Slow, sluggish, lethargic feeling Weakness Exams and Tests A complete blood count (CBC) will show a high number of white blood cells. A blood culture during the first week of the fever can show S. typhi bacteria. ELISA urine test to look for the bacteria that cause Typhoid fever Fluorescent antibody study to look for substances that are specific to Typhoid bacteria Platelet count (platelet count may be low). Treatment Fluids and electrolytes may be given by IV (into a vein). Or you may be asked to drink uncontaminated water with electrolyte packets. Antibiotics are given to kill the bacteria. There are increasing rates of antibiotic resistance throughout the world, so your health care provider will check current recommendations before choosing an antibiotic. facebook https://www.facebook.com/profile.php?id=100015591840955 Google plus https://plus.google.com/b/101683933727326950082/collection/8uY-PE twitter https://twitter.com/HDLAB4 Please Subscribe my channel Like And Share Thanks For Watching
Views: 53916 Harib Lab
***Caution: This product is not 510(k) cleared by US FDA and thus is not for sale in the United States.*** INTENDED USE QuickProfile™ S. Typhi IgG/IgM Duo Test is an in vitro qualitative immunochromatographic assay for the rapid detection of anti-S.Typhi antibodies in human whole blood/plasma/serum specimen. The test results are intended to help in the diagnosis of S. Typhi infection. INTRODUCTION Typhoid fever is a life threatening illness caused by the bacterium Salmonella typhi, and was observed by Eberth (1880) in the mesenteric nodes and spleen of fatal cases of typhoid fever. It is common in developing countries where it affects about 12.5 million persons annually. The infection is acquired typically by ingestion. On reaching the gut, the bacilli attach themselves to the epithelial cells of the intestinal villi and penetrate to the lamina and submucosa. They are then phagocytosed there by polymorphs and macrophages. The ability to resist intracellular killing and to multiply within these cells is a measure of their virulence. They enter the mesenteric lymph nodes, where they multiply and, via the thoracic duct, enter the blood stream. A transient bacteremia follows, during which the bacilli are seeded in the liver, gall bladder, spleen, bone marrow, lymph nodes and kidneys, where further multiplication takes place. Towards the end of the incubation period, there occurs a massive bacteremia from these sites, heralding the onset of the clinical symptoms. The symptoms of the illness include high fever, headache, abdominal pain, diarrhea or constipation. A quick and accurate diagnosis of typhoid fever at an early stage is not only important for etiological diagnosis, but also to identify and treat the potential carriers and prevent acute disease outbreaks. QuickProfile ™ S. Typhi Antibody Duo Test takes only 10-20 minutes and requires only a small quantity of sample to perform. It is a easy and specific method for detecting S. typhi infection.
Views: 21256 LumiQuick
The WIDAL test is an outdated test. So it does not have any value in the Indian scenario, whereas most Indians have been exposed to vaccinations for typhoid for typhoid fever in the childhood. So in such cases, WIDAL test is of not much use. Any fever can cause elevation in the WIDAL titres. This is called as an anamnestic reaction. So the generalized increased in antibodies in a person who has fever. In a person who does not have fever, and it is positive no matter whatsoever. So the only way to diagnose. Salmonella infection is a blood culture, stool culture or a urine culture. So that is the way to diagnose salmonella.
Views: 28167 Doctors' Circle - World's Largest Health Platform
In this video I explained Typhoid fever. Typhoid fever caused by salmonella typhi or salmonella paratyphi bacteria, This spread by faecal-oral route means by excreta.Excreta may contaminate water may spread this bacteria.Contamination of hand from excreta may spread this bacteria by what you eat or drink.Flies may be spread this bacteria by contact with excreta. (excreta means toilet) Problem is diagnosis of this Fever.Unlike malaria,chikungunia,dengue etc fever their diagnosis is done by clinically with immediate lab report but diagnosis of typhoid takes time.Widal test positive after 1st week. Treatment consist of antibiotic therapy for 2 week.Cephalosporin & fluoroquinolone groupnof medicines used. In some patient may may reoccur within few days of treatment then antibiotics for 4 week suggested. In any disease prevention is easy then treatment so take care about it. Thanking You #beyourdoctor #typhoid #typhoidfever #typhoidtreatment #typhoidsymptoms #typhoidcauses ------------------------------------------ Social Links ----------------------------------------------- Like Us On Facebook : - https://www.facebook.com/beyourdoctor2016/ Email :- [email protected]
Views: 536669 Be Your Doctor
TYPHOID IS #ENTERICFEVER, IT INFECTED BY #CONTAMINATION THROUGH FOOD AND WATER.ITS CAUSED BY #SALLMONELLA TYPHI #BACTERIUM .IT MAINLY LIVES IN THE SMALL INTESTINE OF MAN,IT MIGRATES TO OTHER ORGANS TROUGH BLOOD.IT CAN BE CONFORMED BY #WIDALTEST. #WAKEUP: Wake up YOUTUBE channel for food fitness and health which describes in Telugu .please subscribe and share. WATCH ON YOUETUBE PAGE WAKE UP CHANNEL https://www.youtube.com/c/wakeupTelevision FACE BOOK PAGE https://www.facebook.com/Wakeup-576436086050562/ Backgrund music information* big thanks for giving us music copyright free music* youtube audio library -~-~~-~~~-~~-~- Please watch: "HOW TO CUT ONIONS DIFFERENT TYPES OF DIFFERENT CURRIES IN TELUGU|VEGETABLE CUTTING @ WAKEUP" https://www.youtube.com/watch?v=ZU3QyAFE21A -~-~~-~~~-~~-~-
Views: 59575 wakeup
Learn how the Mantoux test is done and how it works. Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Stanford School of Medicine. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-infectious-diseases/tuberculosis-rn/v/interpreting-the-ppd?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-infectious-diseases/tuberculosis-rn/v/extrapulmonary-tb-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/licenses/by-nc-sa/3.0/us/). About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channel/UCDx5cTeADCvKWgF9x_Qjz3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 72188 khanacademymedicine
Dr. Joe Brown discusses labs and Blood work (WHITE BLOOD CELLS, ANEMIA, PROTEINS, CHOLESTEROL, KIDNEY AND LIVER FUNCTION, HORMONES) and how to read and understand your blood work. He gives descriptions, definitions, and explanations in detail. Visit: Dr. Joe Brown at http://www.DoctorJoeBrown.com - CANCER SURVIVOR !!! -CLICK SUBSCRIBE TO RECEIVE DR. JOE BROWN'S DAILY INFORMATION VIDEOS
Views: 290976 DrJoe Brown
Weil felix Test LIKE US ON FACEBOOK : fb.me/Medsimplified BUY USING AFFILIATE LINKS : AMAZON US--- https://goo.gl/XSJtTx AMAZON India http://goo.gl/QsUhku FLIPKART http://fkrt.it/Wiv8RNNNNN FLIPKART MOBILE APP http://fkrt.it/Wiv8RNNNNN is an agglutination test for the diagnosis of rickettsial infections. It was first described in 1916. By virtue of its long history and of its simplicity, it has been one of the most widely employed tests for rickettsia on a global scale, despite being superseded in many settings by more sensitive and specific diagnostic tests. The basis of the test is the presence of antigenic cross-reactivity between Rickettsia spp. and certain serotypes of non-motile Proteus spp., a phenomenon first published by Edmund Weil and Arthur Felix in 1916. The serum of patients diagnosed with epidemic typhus was found to agglutinate in the presence of bacteria now known as Proteus vulgaris. Ensuing work elucidated that it was in fact the somatic (O) antigen that cross-reacted with anti-rickettsial antibodies, and furthermore, that different Proteus O antigens would cross-react with different species of Rickettsia. Typhus group rickettsiae (Rickettsia prowazekii, R. typhi) react with P. vulgaris OX19, and scrub typhus (Orientia tsutsugamushi) reacts with P. mirabilis OXK. The spotted fever group rickettsiae (R. rickettsii, R. africae, R. japonica, etc.) react with P. vulgaris OX2 and OX19, to varying degrees, depending on the species. The Weil–Felix test suffers from poor sensitivity and specificity, with a recent study showing an overall sensitivity as low as 33% and specificity of 46%. Other studies have had similar findings. As a result, it has largely been supplanted by other methods of serology, including indirect immunofluorescence antibody (IFA) testing, which is the gold standard. However, in resource-limited settings, it still remains an important tool in the diagnosis and identification of public health concerns, such as outbreaks of epidemic typhus. Slide method On a solid surface (glass slide, tile, card), a small amount (50–100 μL) of the patient’s serum is placed. A single drop of the desired antigen is added, and the resulting suspension is mixed and then rotated for one minute. Visible agglutination is indicative of a positive result, and corresponds roughly to a titer of 1:20. Positive results can be further titrated using the tube method, which is more labour-intensive. Tube method Using 0.25% phenol saline as a diluent, a series of tubes containing twofold dilutions of patient serum are made with a final volume of 1 mL. A drop of antigen suspension is added to each tube, and the mixture is incubated at 50–55 °C for 4–6 hours. A positive tube would show visible flocculation or granulation, which is accentuated when the tube is gently agitated. The titer corresponds to the most dilute tube in the series that still shows positivity. Generally, a titer of ≥1:320 is considered diagnostic. Subscribe https://www.youtube.com/channel/UCOmrniWfKi-uCD6Oh6fqhgw Watch Again https://youtu.be/ggoKUiEPKE0 -~-~~-~~~-~~-~- CHECK OUT NEWEST VIDEO: "Nucleic acids - DNA and RNA structure " https://www.youtube.com/watch?v=0lZRAShqft0 -~-~~-~~~-~~-~-
Views: 22452 MEDSimplified
Antistreptolysin O test is explained in detail.
Views: 17039 Medical Microbiology Guide
Typhidot test to detect IgG & IgM antibodies in typhoid fever. This test detects antibody IgG and IgM in the serum of patient. The commercial kit manufacturer claims that Typhidot can detect antibody in the first few days of fever when Widal is negative. The Typhidot is easy to perform and requires no special equipment. This will be a useful complementary test to blood culture and the Widal test in the diagnosis of typhoid fever. Widal test is positive after at least 7 to 10 days of Typhoid fever. How To Done Typhidot Test at Home In Urdu 2018|| How To Perform Typhoid Test in Urdu With Ict Method
Views: 9587 Amir Health Care
What is ANTIBODY TITER? What does ANTIBODY TITER mean? ANTIBODY TITER meaning - ANTIBODY TITER definition - ANTIBODY TITER explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ An antibody titer is a measurement of how much antibody an organism has produced that recognizes a particular epitope, expressed as the inverse of the greatest dilution (in a serial dilution) that still gives a positive result. ELISA is a common means of determining antibody titers. For example, the indirect Coombs test detects the presence of anti-Rh antibodies in a pregnant woman's blood serum. A patient might be reported to have an "indirect Coombs titer" of 16. This means that the patient's serum gives a positive indirect Coombs test at any dilution down to 1/16 (1 part serum to 15 parts diluent). At greater dilutions the indirect Coombs test is negative. If a few weeks later the same patient had an indirect Coombs titer of 32 (1/32 dilution which is 1 part serum to 31 parts diluent), this would mean that she was making more anti-Rh antibody, since it took a greater dilution to abolish the positive test. Many traditional serological tests such as hemagglutination or complement fixation employ this principle. Such tests can typically be read visually, which makes them fast and cost-effective in a "low-tech" environment. The interpretation of serological titers is guided by reference values that are specific to the antigen or antibody in question; a titer of 1:32 may be below the cut-off for one test but above for another.
Views: 4477 The Audiopedia
Video shows what typhoid fever means. An illness caused by the bacterium . Not to be confused with typhus.. typhoid fever synonyms: enteric fever. Typhoid fever Meaning. How to pronounce, definition audio dictionary. How to say typhoid fever. Powered by MaryTTS, Wiktionary
Views: 2151 SDictionary
Part 1 https://www.youtube.com/watch?v=XaLBynjL000 Part 2 https://www.youtube.com/watch?v=_kwEhk1y8d0 Rickettsial diseases simplified, please check out all the videos in sequence for the best experience :) cdc link for additional info http://wwwnc.cdc.gov/travel/yellowbook/2016/infectious-diseases-related-to-travel/rickettsial-spotted-typhus-fevers-related-infections-anaplasmosis-ehrlichiosis
Views: 7376 StuDyParTner
Serial Dilution Method: Definition and Procedure Explained http://www.biologyexams4u.com/2013/12/serial-dilution-protocol-pdf.html
Views: 314398 biologyexams4u
✪✪✪✪✪ WORK FROM HOME! Looking for WORKERS for simple Internet data entry JOBS. $15-20 per hour. SIGN UP here - http://jobs.theaudiopedia.com ✪✪✪✪✪ ✪✪✪✪✪ The Audiopedia Android application, INSTALL NOW - https://play.google.com/store/apps/details?id=com.wTheAudiopedia_8069473 ✪✪✪✪✪ What is SEROLOGY? What does SEROLOGY mean? SEROLOGY meaning, definition & explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Serology is the scientific study of serum and other bodily fluids. In practice, the term usually refers to the diagnostic identification of antibodies in the serum. Such antibodies are typically formed in response to an infection (against a given microorganism), against other foreign proteins (in response, for example, to a mismatched blood transfusion), or to one's own proteins (in instances of autoimmune disease). Serological tests may be performed for diagnostic purposes when an infection is suspected, in rheumatic illnesses, and in many other situations, such as checking an individual's blood type. Serology blood tests help to diagnose patients with certain immune deficiencies associated with the lack of antibodies, such as X-linked agammaglobulinemia. In such cases, tests for antibodies will be consistently negative. There are several serology techniques that can be used depending on the antibodies being studied. These include: ELISA, agglutination, precipitation, complement-fixation, and fluorescent antibodies. Some serological tests are not limited to blood serum, but can also be performed on other bodily fluids such as semen and saliva, which have (roughly) similar properties to serum. Serological tests may also be used in forensic serology, specifically for a piece of evidence (e.g., linking a rapist to a semen sample).
Views: 38868 The Audiopedia
This video is about VDRL blood test in hindi, you will learn what is vdrl test and why this test is done, and what is the normal range and what is false positive result. #vdrltest #vdrltestnormalrange #vdrlbloodtestinhindi Subscribe To My Channel Sehat Aur LIfe with pawan uppal and Get More Health Videos https://www.youtube.com/channel/UC5w3oiyRomZ_M--3dTh58uA?sub_confirmation=1 Thank you very much. Pawan Uppal
Views: 42158 Sehat Aur Life With Pawan Uppal
VDRL (venereal disease research laboratory) test is used to detect if you're infected by a bacteria named, Treponema pallidum. This test is designed to check the type of antibodies to VDRL in blood. Dr. Pratibha Karande illustrates what's it all about, its most important factor and when to go for the test. VDRL Test prices in India: https://www.medifee.com/tests/vdrl-test-cost/
Views: 152564 MediFee.com
In this medical video - HIV negative person undergoes an instant HIV test. Also with an HIV positive person. This video is all about the process of doing HIV rapid antibody test on HIV infected (positive) person and HIV negative person and reading the result Principle HIV antigens are immobilized on a porous immunofiltration membrane. Sample and reagents pass through the membrane and are absorbed into the underlying absorbent. As the patient’s sample passes through the membrane, HIV antibodies, if present, bind to the immobilized antigens. Conjugate binds to the Fc portion of the HIV antibodies to give distinct pinkish purple DOT(s) against a white background. The HIV TRI-DOT test is a visual, rapid, sensitive and accurate immunoassay for the differential detection of HIV-1 & HIV-2 antibodies (IgG) in human serum or plasma using HIV-1 & HIV-2 Antigens immobilized on an immunofiltration membrane. The test is a screening test for Anti HIV-1 and HIV-2 and is for in vitro diagnostic use only. Rapid antibody tests are qualitative immunoassays intended for use in point-of-care testing to aid in the diagnosis of HIV infection. These tests should be used in conjunction with the clinical status, history, and risk factors of the person being tested. The positive predictive value of Rapid Antibody Tests in low-risk populations has not been evaluated. Key words: HIV - HIV test on positive person - HIV Tridot test - ELISA technique - HIV negative, HIV results HIV rapid antibody test Lab test for HIV Blood test for HIV
Views: 52607 Dr Harish R J
हेपेटाइटिस B क्या है और यह कैसे फैलता है? हेपेटाइटिस B सरफेस एंटीजेन टेस्ट क्या होता है? हेपेटाइटिस B सरफेस एंटीजेन +ve हो तो क्या करना चाहिए? क्या यह टेस्ट +ve आने के बाद नियमित निगरानी की जरूरत होती है? जानिए HBsAg सरफेस एंटीजेन टेस्ट के बारे में डॉ. अंकुश से । Find HBsAg Test prices in India: https://www.medifee.com/tests/hbsag-test-cost/
Views: 288615 MediFee.com
SGOT क्या होता है? यह टेस्ट कैसे किया जाता है? SGOT के नॉर्मल वैल्यूज क्या हैं? SGOT का स्तर किन बीमारियों के कारण बढ़ सकता है? क्या इस एकमात्र टेस्ट से लिवर की बीमारी का पता चल सकता है? जानिए डॉ. अंकुश से SGOT ब्लड टेस्ट के बारे में । Find SGOT test prices in India: https://www.medifee.com/tests/sgot-cost/
Views: 211503 MediFee.com