Sedimentation Rate

Erythrocyte Sedimentation Rate

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

• Pregnancy.
• Anemia.
• Having your menstrual period.
• Age. Sed rates normally increase with age.
• Medicines. Many medicines can change the results of this test. Be sure to tell your doctor about all the nonprescription and prescription medicines you take.

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Author:	Shannon Erstad, MBA/MPH	Last Updated: June 12, 2008
Medical Review:	Kathleen Romito, MD - Family Medicine Stanford M. Shoor, MD - Rheumatology
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