A test that determines the rate at which red blood cells settle in a long,narrow tube is a/an:
A) ESR.
B) PTT.
C) PT.
D) HCT.

Question

Quizplus · Accepted Answer

The test that determines the rate at which red blood cells settle in a long, narrow tube is called ESR (erythrocyte sedimentation rate). This test measures the degree of inflammation present in the body, as inflammatory proteins cause red blood cells to clump and settle faster. PTT (partial thromboplastin time) and PT (prothrombin time) are tests used to evaluate blood clotting function, while HCT (hematocrit) measures the volume of red blood cells in the blood.

A Test That Determines the Rate at Which Red Blood