COMPONENTS OF BLOOD:
· Red cells carry
oxygen and help remove waste products
·
White cells help
your body fight infections
·
Plasma is the
liquid part of your blood
·
Platelets help
your blood clot properly
A transfusion provides
the part or parts of blood you need, with red blood cells being the most
commonly transfused. You can also receive whole blood, which contains all the
parts, but whole blood transfusions aren't common.
Why Would
One Need a Blood Transfusion?
There are many reasons one might
need to receive a blood transfusion. These are just a few of them:
- You’ve had major surgery or a serious injury and you need to replace lost blood
- You’ve experienced bleeding in your digestive tract from an ulcer or other condition
- You have an illness like leukemia or kidney disease that causes anemia (not enough healthy red blood cells)
- You have a blood disorder or severe liver problems
Common types of blood transfusions:
· Red Blood Cell
Transfusions: A patient suffering from an iron deficiency or anemia, a
condition where the body does not have enough red blood cells, may receive a red
blood cell transfusion. This type of transfusion increases a patient’s
hemoglobin and iron levels, while improving the amount of oxygen in the body.
· Platelet Transfusions: Platelets
are a component of blood that stops the body from bleeding. Often patients
suffering from leukemia, or other types of cancer, have lower platelet counts
as a side effect of their chemotherapy treatments. Patients who have illnesses
that prevent the body from making enough platelets have to get regular
transfusions to stay healthy.
· Plasma Transfusions: Plasma
is the liquid part of the body’s blood. It contains important proteins and
other substances crucial to one’s overall health. Plasma transfusions are used
for patients with liver failure, severe infections, and serious burns.
Process
After
taking consent from the patient and explaining him all the pros and cons,the following
steps are performed.
Before the Procedure
A nurse or doctor will check the patient’s blood pressure, pulse, and temperature before starting the transfusion.
During the Procedure
The
blood transfusion procedure begins when an intravenous (IV) line is placed onto
the patient’s body. It is through the IV that the patient will begin to receive
the new blood. Depending on the amount of blood, a simple blood transfusion can
take between 1-4 hours.
After the Procedure
Following
the completion of the blood transfusion, the patient’s vital signs are checked
and the IV is removed. For a couple of days after the transfusion, patients may
experience some soreness near the puncture for the IV. The patient’s doctor may
request a check-up after the transfusion to see the body’s reaction to the new
blood.
Blood
Donor Criteria
Contraindications include:
- Megaloblastic anaemia (vitamin B12 or folate deficiency - transfusion may cause heart failure and death).
- Iron deficiency anaemia
- Platelet transfusions are highly contraindicated in ITP (Immune Thrombocytopenic Purpura), HIT (Heparin Induced Thrombocytopenia) and other platelet disorders.
Complications of Blood Transfusion
Blood transfusions
usually occur without complications. When complications do occur, they're
typically mild.
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