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Doctor insights on: How Does A Body Reject A Blood Transfusion

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How can a body reject a blood transfusion?

How can a body reject a blood transfusion?

Antibodies: Antibodies are produced by the body to defend against "foreign" substances, such as bacteria, viruses or cells from another person and generally circulate in the blood. If transfused red blood cells have structures on their surface that are different than those on your own red cells, the body may unleash this army of antibodies to attack and kill transfused cells. ...Read more

Dr. Juan Merayo-Rodriguez
318 doctors shared insights

Transfusions (Definition)

Sometimes babies are given whole blood to supply what they are lacking, and sometimes only components of blood, such as platelets or ...Read more


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Is it possible that after a while a sickle cell patient body starts rejecting blood transfusions?

Is it possible that after a while a sickle cell patient  body starts rejecting blood transfusions?

Not really: There's no such thing as "rejecting" blood transfusion. Very rarely, someone can have a severe allergic reaction to transfused blood, with hemolysis (which as a sickle patient you may know a lot about). But this is exactly what blood typing is designed to prevent. If you think transfusions aren't boosting your hematocrit or hemoglobin as much as in the past, discuss it with your doctor. ...Read more

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If you have a blood transfusion how long will it take to process the foreign blood out of your body?

If you have a blood transfusion how long will it take to process the foreign blood out of your body?

Probably 120 days.: The foreign blood is not really processed out of your body as much as it is reconverted as it is used. It also depends on what is transfused in the first place be it packed rbc's, fresh frozen plasma, or cryoprecipitate, etc. At any rate, the average life span of a red cell is 120 days, and depending on how old the cells are when transfused it can take up to that long for them to die off. ...Read more

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Is it possible for the human body to endure complete blood transfusion?

Is it possible for the human body to endure complete blood transfusion?

Yes indeed!: In fact, exchange transfusion was the treatment of choice that saved many lives of children both with rh disease -- hemolytic disease of the newborn -- back in the bad old days. Today, all of one's plasma can be removed and replaced daily, as in treatment for goodpasture's and ttp. This is an excellent question and still very relevant. ...Read more

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Can you tell me for what reasons do the jehovah's reject blood transfusions and what treatments do they accept/reject?

Can you tell me for what reasons do the jehovah's reject blood transfusions and what treatments do they accept/reject?

Bible verses: The sect also used to forbid immunizations, organ transplantation, and aluminum cookware but has reversed their positions. Don't argue with them. It is an ultra-authoritarian sect and members who disagree are "disfellowshipped" and their own families are not allowed to speak to them. JW's may accept certain fractions of blood. Be aware of the terrible pressures these people are under. ...Read more

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9 RBC , 39000 platlets, low WBC 6 transfusions and not raising my blood levels, my body won't make or take blood. I am afraid i won't go home, help?

9 RBC , 39000 platlets, low WBC 6 transfusions and not raising my blood levels, my body won't make or take blood. I am afraid i won't go home, help?

Don't give up. EVER: There's one thing i know.. That is... I can't predict the future. I care for critically ill patients every day. There are patients that I am sure will die... Then they get better. Then there are patients that i think i will "cure". But a higher power intervenes. Ultimately, I have discovered that life is a dichotomy. Life is very strong... But it is very fragile. Stay strong! and accept help. ...Read more

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What could possibly cause purple dottie rash all over the body and extreme weight loss, depletion of platelets? Also depletion of blood causing a need for both blood and platelets transfusions and a low grade fever! something is depleting everything my s

What could possibly cause purple dottie rash all over the body and extreme weight loss, depletion of platelets? Also depletion of blood causing a need for both blood and platelets transfusions and a low grade fever! something is depleting everything my s

This : This sounds like thrombocytopenic purpura. It can be caused by a variety of conditions, but sometimes there is no cause identified (in which case it's called idiopathic.) if she is not being seen by a hematologist, she definitely should be. Has she been exposed to heparin? This is a common intravenous or subcutaneous medication that can cause a similar picture in patients who are sensitive to it. ...Read more