Apheresis Flashcards
The removal of red cells in a hemapheresis procedure is called?
erythrocytapheresis
All of the following constitute variables of apheresis procedures except:
Blood type
Platelets collected using an open apheresis system have a _____ outdate.
24 hour
Which apheresis method carries the additional risk of returning red cells to the wrong individual and yielding the smallest volume of selected blood component?
Manual apheresis
What is therapeutic plasmapheresis?
The removal of a large volume of patient plasma
A normal healthy donor undergoes a procedure to obtain platelets that will be transfused to a patient is representative of:
component apheresis collection
One unit platelets prepared by apheresis should increase the platelet count_________.
30,000 to 60,000 per uL
platelet pheresis, which blood component is returned to the donor?
Red blood cells
White blood cells
While undergoing plasmapheresis, the donor experienced numbness around his mouth which is indicative of citrate toxicity. How can this be treated?
administering exogenous calcium
What other technique is available for neonates with sepsis when apheresis is unavailable?
a buffy coat prepared from a whole blood unit less than 12 hours old
What is a complication of chronic transfusion therapy in patients with thalassemia major?
iron deposition in tissues
Which of the following is not an indication for plasmapheresis?
to decrease iron deposition in tissues in chronically transfused patients
Leukopheresis may be indicated when the white blood cell count exceeds ____.
100,000 per uL
What is the “rebound phenomena” in plasma exchange?
Removal of IgG with pheresis can lead to increased antibody synthesis
Currently, the immunoaffinity has FDA licensure for treating what disease state?
idiopathic thromocytopenic purpura (ITP)
