Sedimentation Rates Resolution. The sed rate test reports in millimeters (mm) the distance between the clear liquid (plasma) at the top of the tube and your red blood cells after 1 hour. The normal range is: 0 to 15 mm/hour in . Send Email: [email protected] Send Message Chat Online. Sedimentation Rate (Sed Rate): Esr Test Results High Vs. Low. The sed rate test reports in millimeters (mm) the ...