An Erythrocyte Sedimentation Rate (ESR) test measures how quickly red blood cells settle at the bottom of a test tube. This test is a general indicator of inflammation in the body. While it doesn't diagnose a specific condition, an elevated ESR can suggest the presence of infections, autoimmune diseases, inflammatory bowel diseases, or certain types of cancer. It's often used in conjunction with other tests to help diagnose and monitor these conditions.
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3 mL (1.5 mL min.) whole blood in 1 Lavender Top (EDTA) tube. Ship refrigerated. DO NOT FREEZE. Overnight fasting is preferred.