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enseignants",{"title":54,"url":55},{"title":57,"url":58},{"title":186,"group":48,"menu":187},"Produit",[188,189,190,191,192,193,194],{"title":38,"url":7},{"title":65,"url":66},{"title":68,"url":69},{"title":71,"url":72},{"title":74,"url":75},{"title":15,"url":77},{"title":195,"url":10},"Tarification",{"title":197,"group":48,"menu":198},"Mentions légales",[199,200,201,202,203],{"title":197,"url":84},{"title":86,"url":87},{"title":89,"url":90},{"title":92,"url":93},{"title":95,"url":96},{"title":205,"group":48,"menu":206},"Service client",[207,208,209],{"title":101,"url":102},{"title":104,"url":105},{"title":107,"url":108},{"content":211,"related":288,"meta":366,"internal":376},{"title":212,"leadIn":213,"category":214,"elements":217,"becomeAnExpert":254,"author":276,"readDuration":286,"readDurationFormatted":287},"Mastering red blood cell compatibility","Learn about the decision-making process behind choosing a red blood cell (RBC) product that is compatible with your patient's blood type.",{"id":215,"name":216},1,"Course previews",[218,228,233,238,245,249],{"type":219,"data":220},"video",{"readDurationInSeconds":221,"video":222},267,{"platform":223,"name":212,"url":224,"size":225},"YouTube","https:\u002F\u002Fwww.youtube.com\u002Fwatch?v=--7jU1u1fhs",{"width":226,"height":227},200,113,{"type":229,"data":230},"free_text",{"readDurationInSeconds":231,"text":232},7.733333333333333,"\u003Cp>In this video, from our Transfusion Medicine Essentials course, you'll learn about the decision-making process behind choosing a red blood cell (RBC) product that is compatible with your patient's blood type.\u003C\u002Fp>",{"type":229,"data":234},{"readDurationInSeconds":235,"title":236,"text":237},17.066666666666666,"Join our Transfusion Medicine Essentials course today!","\u003Cp>Learn how to confidently choose the right blood product, at the right time, for your patients! With our \u003Cstrong>\u003Ca href=\"https:\u002F\u002Fwww.medmastery.com\u002Fcourse\u002Ftransfusion-medicine-essentials\">Transfusion Medicine Essentials\u003C\u002Fa>\u003C\u002Fstrong> course, you'll master the administration of blood products, understand how blood typing works, determine when it's okay to skip some parts of the testing, learn how to deal with complications, identify blood group constellations in pregnancy, and apply your knowledge to real-life patient cases. \u003C\u002Fp>",{"type":239,"data":240},"cta",{"readDurationInSeconds":241,"text":242,"buttonText":243,"buttonUrl":244},3.466666666666667,"Become a great clinician with our video courses and workshops","Start learning for free","https:\u002F\u002Fwww.medmastery.com\u002Fuser\u002Fregister",{"type":229,"data":246},{"readDurationInSeconds":247,"text":248},0,"\u003Cp>\u003Cmeta charset=\"utf-8\">\u003C\u002Fp>",{"type":229,"data":250},{"readDurationInSeconds":251,"title":252,"text":253},116.53333333333333,"Video Transcript","\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:00:00] \u003C\u002Fb>In this lesson, I want to help you to easily and quickly answer the question—what blood product is compatible with my patient's blood group? This will help you determine what products you can transfuse your patient. So, how does red blood cell compatibility work? The underlying question you should ask is—will my patient have antibodies against the donor's red blood cell antigens that can cause hemolysis? \u003C\u002Fp>\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:00:30] \u003C\u002Fb>Let's go forward step by step. Who can you transfuse with blood group A? Remember, you want to avoid interactions between the A antigen on the donor RBC and anti-A in the patient's plasma. So, the answer is you can transfuse A blood to all patients with no anti-A in their plasma. Let's take a look at our table from before. That strikes out group B and group O. Again, who can receive \u003C\u002Fp>\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:01:00] \u003C\u002Fb>blood group A donor blood? Patients with blood group A or AB. The same applies for blood from group B donors. We cannot give it to individuals who have anti-B in their plasma, so do not give it to patients with blood group A or group O. So, only give type B blood to patients with group B or AB. And RBC units of blood group AB, who can receive those? Well, now we have to \u003C\u002Fp>\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:01:30] \u003C\u002Fb>avoid anti-A and anti-B antibodies. Let's have a look. Group A is a no-go, group B is a no-go, and also group O is a no-go, that leaves only group AB. So, AB donor blood can only be given to patients with group AB blood. And finally, blood group O. There is no A antigen or B antigen on the red blood cells. So, even if there are antibodies in the recipient's plasma, \u003C\u002Fp>\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:02:00] \u003C\u002Fb>they won't have anything to bind to on these RBCs. So, you can give group O blood to patients of all ABO blood groups: O, A, B, and AB. For this reason, group O is the universal donor blood group for red blood cells and is used in life-threatening emergencies when there is no time to wait for blood typing. Rhesus D compatibility is also important when transfusing red blood cells. In general, transfused RBCs \u003C\u002Fp>\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:02:30] \u003C\u002Fb>should be identical to the rhesus D status of the patient. So, a rhesus D positive patient should receive rhesus D positive blood and the rhesus D negative patient should receive rhesus D negative blood. However, due to a general shortage of D negative blood product, it is sometimes necessary to give D positive products to D negative patients. This is okay in selected and strictly indicated cases since there is no immediate risk \u003C\u002Fp>\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:03:00] \u003C\u002Fb>of an adverse transfusion reaction. Remember, the patient won't have antibodies to rhesus D antigen until after they’re first exposed to it. If anti-D production is induced that way, the patient will need D negative blood products the next time though. However, in girls or women who are rhesus D negative and who may become pregnant in the future, it is important that rhesus D negative blood products are used in order to avoid immunization and the potential \u003C\u002Fp>\u003Cp dir=\"ltr\">\u003Cb id=\"docs-internal-guid-2eb658d4-7fff-9368-9f77-2db3eb4ac892\">[00:03:30] \u003C\u002Fb>development of hemolytic disease of the fetus and newborn in future pregnancies. We will discuss this in more detail in a later chapter. If it is absolutely unavoidable to give D positive products to D negative women, you should provide your patient with anti-D immunoglobulin prophylaxis after the transfusion to prevent immunization. \u003C\u002Fp>\u003Cp>Contratulations! 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In this course, you’ll not only learn how blood typing works, you’ll also know what tests are essential, when and why, and if it’s okay to skip parts of them. You’ll be prepared to administer basic transfusions, ready to deal with special situations like pregnancy, and manage complications, should they arise.",{"duration":273,"quizzes":274,"lessons":275},8583,8,47,{"id":277,"name":264,"image":278,"profession":279,"relativeUrl":282,"specializations":283},4459,"https:\u002F\u002Fmedmastery-backend-prod-kjbeds.s3.eu-west-1.amazonaws.com\u002Fmedia\u002Fimages\u002F9c43cef9-4f55-4a08-8e1e-cc9919550b37",{"name":280,"description":281},"Laboratory medicine specialist","Anna is a Certified Family Physician and Specialist in Clinical Chemistry.","\u002Fteachers\u002Fanna-wonnerth-md",[284,285,262],"Infectious diseases","Cardiology",152,"3m",[289,317,342],{"id":290,"title":291,"text":292,"image":293,"author":302,"path":311,"readDuration":312,"readDurationFormatted":287,"internal":313},1354,"Evaluating bleeding & abdominal pain in early pregnancy","Learn how to evaluate a patient presenting with vaginal bleeding and abdominal pain in early pregnancy when ectopic pregnancy is a concern.",{"alt":294,"title":295,"size":296,"location":299},"Medical illustration of an ectopic pregnancy implanted in the fallopian tube outside the uterus","",{"width":297,"height":298},1201,1200,{"bucket":300,"key":301},"public-drupal-medmastery-assets-production","\u002F2026-06\u002FC144(2)_magazine image.png",{"id":303,"title":304,"relativeURL":305,"image":306,"professionLong":307,"profession":308,"weight":310},12787,"Tori O’Daniel, MD FACOG","\u002Fteachers\u002Ftori-odaniel-md-facog","https:\u002F\u002Fmedmastery-backend-prod-kjbeds.s3.eu-west-1.amazonaws.com\u002Fmedia\u002Fimages\u002F9c43cf00-58e5-4b12-9d94-ce4fcf5697fc","Tori is a lead obstetrician (OB) hospitalist and Medical Director of OB Hospitalists and Women’s Services at Mercy Hospital, Oklahoma City.",{"name":309},"Lead obstetrician hospitalist",5312,"\u002Fmagazine\u002Fabdominal-pain-in-early-pregnancy",172,{"created":314,"updated":315,"published":316},1780855964,1780858467,1780858468,{"id":318,"title":319,"text":320,"image":321,"author":327,"path":336,"readDuration":227,"readDurationFormatted":337,"internal":338},1353,"Gestational age ultrasound in early pregnancy evaluation","Learn how to obtain the correct ultrasound views and accurately measure crown-rump length and biparietal diameter to estimate gestational age.",{"alt":322,"title":295,"size":323,"location":325},"Gestational age ultrasound image demonstrating crown-rump length measurement in the first trimester",{"width":324,"height":324},900,{"bucket":300,"key":326},"\u002F2026-05\u002FC144(1)_magazine image.png",{"id":328,"title":329,"relativeURL":330,"image":331,"professionLong":332,"profession":333,"weight":335},2976,"Viveta Lobo, MD","\u002Fteachers\u002Fviveta-lobo-md","https:\u002F\u002Fmedmastery-backend-prod-kjbeds.s3.eu-west-1.amazonaws.com\u002Fmedia\u002Fimages\u002F9c43cefc-7f09-4a9a-9865-4aeea3cef318","\u003Cspan id=\"docs-internal-guid-57fc7959-7fff-8d74-e680-4d8102bdd254\">Associate Professor, Department of Emergency Medicine at Stanford University Medical Center in California, USA.\u003C\u002Fspan>",{"name":334},"Emergency medicine physician",507,"\u002Fmagazine\u002Fgestational-age-ultrasound","2m",{"created":339,"updated":340,"published":341},1780168728,1780322380,1780169720,{"id":343,"title":344,"text":345,"image":346,"author":351,"path":359,"readDuration":360,"readDurationFormatted":361,"internal":362},1352,"Injectable cholesterol medication: using PCSK9 inhibitors","Not all patients reach their LDL targets with oral therapy. Learn when injectable cholesterol medication helps and how PCSK9 inhibitors work.",{"alt":347,"title":295,"size":348,"location":349},"Two PCSK9 inhibitor autoinjector pens—an injectable cholesterol medication—shown on a light blue background.",{"width":324,"height":324},{"bucket":300,"key":350},"\u002F2026-05\u002FC121(3)_magazine image.png",{"id":352,"title":353,"relativeURL":354,"image":355,"professionLong":356,"profession":357,"weight":265},1563,"Franz Wiesbauer, MD MPH","\u002Fteachers\u002Ffranz-wiesbauer-md-mph","https:\u002F\u002Fmedmastery-backend-prod-kjbeds.s3.eu-west-1.amazonaws.com\u002Fmedia\u002Fimages\u002F9c43cef0-41ee-4005-9e4a-d8711c816401","Franz is the founder and CEO of Medmastery. He is an internist with a specialization in cardiology and a master’s in public health from Johns Hopkins University.",{"name":358},"Internist","\u002Fmagazine\u002Fpcsk9-injectable-cholesterol-medication",279,"5m",{"created":363,"updated":364,"published":365},1779483663,1779495630,1779495631,{"seo":367,"og":369},{"title":368,"description":213},"Mastering red blood cell compatibility | Medmastery",{"title":368,"description":213,"image":370},{"alt":295,"title":295,"size":371,"location":374},{"width":372,"height":373},750,407,{"bucket":300,"key":375},"\u002Fmigrated-images\u002FScreen Shot 2019-01-16 at 2.30.16 pm.png",{"id":377,"created":378,"updated":379,"published":378},285,1547989981,1655189586]