The non-automated erythrocyte ________ rate (ESR) test measures the rate at which red blood cells settle to the bottom of a blood sample.

Fill in the blank(s) with the appropriate word(s).

sedimentation

An erythrocyte sedimentation rate (ESR) test measures the rate at which red blood cells settle to the bottom of a blood sample. This is a diagnostic tool for inflammatory disease, cancer, and thyroid disease.