Why is anticoagulation required during ECMO?
a. Patients are at risk for DVTs due to im-mobility.
b. The body tends to activate coagulation when exposed to the nonbiologic surfaces of the cannulas and circuit.
c. Coagulation is suppressed during ECMO.
d. Mechanical ventilation during ECMO causes thrombocytopenia.
ANS: B
The blood's natural reaction is to activate coagulation when exposed to the nonbiologic surfaces of the cannulas and circuit. Therefore, anticoagulation is essential prior to cannula insertion and throughout the ECMO course.
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