Sedimentation Rate (ESR)

What this laboratory test evaluates

DetailsSedimentation Rate (ESR) is a non-specific test that measures how quickly red blood cells settle at the bottom of a test tube over one hour. Elevated levels can indicate the presence of inflammation, infection, or autoimmune conditions such as rheumatoid arthritis or lupus.

What type of sample is required for this test?Whole blood

Test ResourcesFor more information, please consult your healthcare provider.

Additional test information

Sedimentation Rate (ESR) is a non-specific test that measures how quickly red blood cells settle at the bottom of a test tube over one hour. Elevated levels can indicate the presence of inflammation, infection, or autoimmune conditions such as rheumatoid arthritis or lupus.

Collection and processing

• Sample type: Whole blood
• Fasting: No
• Estimated laboratory processing: Results should arrive 1 – 2 business days after the lab receives samples.

How Sunridge uses laboratory information

Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.

Before requesting this test

Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.