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CCRN Critical Care Nursing

Category - Adult

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60. When the patient is being monitored for cardiogenic shock with one of the devices like extracorporeal life support, left ventricular assist device, or intraaortic balloon pump, what lab value must be monitored to prevent these devices from becoming clotted?

Potassium and sodium
Prothrombin time, International Normalized Ratio (INR)
Cardiac markers and Troponin
B-type Natriuretic Peptide

Explanation

Answer: B - To prevent the extracorporeal life support, left ventricular assist device or intraaortic balloon pump from becoming clotted, the Prothrombin time (PT, INR) reflects the “thinness” of the blood and the likeliness of the blood’s ability to clot.

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