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Plasmapheresis (from the Greek πλάσμα, plasma, something molded, and ἀφαίρεσις aphairesis, taking away) is the removal, treatment, and return or exchange of blood plasma or components thereof from and to the blood circulation. It is thus an extracorporeal therapy, a medical procedure performed outside the body. [1]
With some procedures both arms are used, one to draw blood and the other to return it. The process takes about one to two hours while blood is pulled into the machine, mixed with an anticoagulant such as sodium citrate, spun around, and returned to the donor. "Double needle" procedures using both arms tend to be shorter since the blood is drawn ...
Blood compatibility testing is routinely performed before a blood transfusion.The full compatibility testing process involves ABO and RhD (Rh factor) typing; screening for antibodies against other blood group systems; and crossmatching, which involves testing the recipient's blood plasma against the donor's red blood cells as a final check for incompatibility.
Plasmapheresis is a medical therapy that involves blood plasma extraction, treatment, and reintegration. Fresh frozen plasma is on the WHO Model List of Essential Medicines , the most important medications needed in a basic health system . [ 9 ]
Apheresis (ἀφαίρεσις (aphairesis, "a taking away")) is a medical technology in which the blood of a person is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation.
She is a co-author of a study published in 2024 that found unreliable pulse oximeter readings might limit the way Black patients with heart failure qualify for those potentially lifesaving procedures.
The uncomfortable and, for some, painful procedure entails using a small brush or spatula to lightly scrape the cervix to gather cells. Cells are then examined under a microscope for precancers or ...
Since the early 1990s, plasmapheresis has become the treatment of choice for TTP. [ 43 ] [ 44 ] This is an exchange transfusion involving removal of the person's blood plasma through apheresis and replacement with donor plasma ( fresh frozen plasma or cryosupernatant ); the procedure must be repeated daily to eliminate the inhibitor and abate ...