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The patient's blood is slowly withdrawn (usually about 5 to 20 mL at a time, depending on the patient's size and the severity of illness). An equal amount of fresh, prewarmed blood or plasma flows into the patient's body. This cycle is repeated until the correct volume of blood has been replaced.

The volume is dependent on the size of the patient, therefore the units of blood required are variable.

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Related Questions

What is the transfer of blood from one body to another body known as?

transfusion.


What did tom fogerty die from?

He had a bad back and needed a blood transfusion. He died in 1990 of AIDS from the new blood which was inserted into his body.


How soon do you recheck complete blood count after blood transfusion?

4-6 hours after blood transfusion, the body recognizes the transfused blood as part of the body's system.


Why are red blood cells the most frequently used blood component in a blood transfusion?

Red blood cells are the blood component most frequently used for transfusion. RBCs are the only cells in the body that transport oxygen. A transfusion of RBCs increases the amount of oxygen that can be carried to the tissues of the body.


How much blood loss can the human body sustain before requiring a transfusion?

The human body can sustain a blood loss of up to 15-30 of its total blood volume before requiring a transfusion.


Process of transferring blood from one body to anorther?

Transfusion


What will happen to the human body if there was a blood transfusion and there was a mismatch in blood group?

There may be issues


Can you have a full blood transfusion?

what i mean is the full amount of blood in your body being replaced


Can you ever donate blood after a blood transfusion?

Usually, you can. But you will be requested to wait a year or so to make extra-double-certain that you didn't pick up any disease with the transfused blood that you'll then will pass on to someone else.


During a blood transfusion is the patients old blood removed from the body?

Not generally. The point of a transfusion is to replace lost blood, so removing blood as you put it in from the transfusion defeats the purpose. Sometimes before surgery, you will undergo "saving" blood, that is before surgery some of your blood is drawn and saved, so it can be put back in after surgery. (This is done weeks in advance, so your body has time to get its blood levels back to normal.) Student Doctor


Why does a transfusion reaction not occur the first time a rh positive patient is exposed to rh negative blood?

the transfusion reaction doesn't occur the first time an Rh+ patient is exposed to Rh- blood because the Rh+ patients body hasn't created the antibodies needed to attack the Rh- blood that it comes in contact with. the second time the Rh+ patients body comes in contact with Rh- blood, it will have the antibodies necessary to fight against Rh- blood.


Fusio During his hospital stay Mr Van required a blood transfusion which replenished his body with blood?

pour