Description
Why It’s Done
Doctors may order an ESR test to:
• Detect inflammation caused by conditions like rheumatoid arthritis, lupus, or vasculitis.
• Monitor chronic inflammatory diseases over time.
• Evaluate unexplained symptoms such as persistent fever, fatigue, or weight loss.
• Aid in diagnosing infections or cancers that cause systemic inflammation.
It is often used in combination with other tests to get a fuller picture of a patient’s health.
Preparation
• No special preparation is needed for an ESR test.
• Inform your doctor about any medications you’re taking, such as corticosteroids or nonsteroidal anti-inflammatory drugs (NSAIDs), as they can affect the results.
• The test is done using a simple blood sample, typically from a vein in the arm
