perioperative concentrated platelet-rich plasm

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1

T/F

Clinical studies have shown that using the autotransfusion system to create platelet-rich plasma leads to a 50% decrease in the need for autologous transfusion.

False.

A decrease in allogeneic transfusion.

2

Blood that is drawn from patients using the direct vascular access method is anticoagulated at which of the following points?

a. In the autotransfusion system

b. At the patient attachment point

b. At the patient attachment point

3

When blood is collected with a collection bag, what type of anticoagulant is typically used?

citrate anticoagulant

4

T/F

in the 2-step centrifugation process, a "soft spin" is followed by a "hard spin".

False.

First its a hard spin to remove RBC's then soft spin to separate plasma from leukocytes.

5

List 3 indications for use of perioperative concentrated platelet-rich plasma.

1. when perioperative predonation is not possible

2. For patients with low hemoglobin

3. Patients undergoing complex operations requiring them to undergo deep hypothermia or circulatory arrest

6

T/F

Hypovolemia is not a contraindication for acute peri-operative platelet pheresis.

False.

Many doctors would consider hypovolemia as a contraindicator

7

List 4 contraindication for perioperative platelet-rich plasma sequestration..

1. aortic stenosis

2. uncontrolled arrhythmia which causes hymodynamic instability

3. infection or sepsis

4. decrease in cardiac output due to decrease in myocardial contractility