Erythrocyte Sed Rate

CPT Code

85651

Specimen Type

Blood

Container Type

Purple-EDTA

Stability

Room Temperature, 12 hours; 2-8°C, 24 hours

Handling Instructions

Invert 8-10 times immediately after collecting

Clinical Notes

The erythrocyte sedimentation rate, also known as ESR, is based on how quickly red blood cells (RBCs) settle inside a test tube.