esr (erythrocyte sedimentation rate)
HematologyBlood sampleResults Same dayNo fasting
ESR (Erythrocyte Sedimentation Rate)
Measures how quickly red blood cells settle in a tube, a general marker of inflammation in the body.
Sample
Blood
Results
Same day
Fasting
Not required
Follow-up
Optional add-on
What this test detects
Erythrocyte sedimentation rate
Westergren method
Quantitative · mm/hr
When to get this test
Inflammation marker
A raised ESR can signal inflammation somewhere in the body, though it does not pinpoint the cause.
Monitoring conditions
Often used to follow the activity of certain inflammatory or chronic conditions over time.
Supporting work-up
Helps support a broader assessment when you have non-specific symptoms like fatigue or low-grade fever.
How to prepare
01
No special preparation needed.
Common questions
What does a high ESR mean?
It suggests inflammation may be present, but it is non-specific and should be read together with other tests and your symptoms.
Do I need to fast for ESR?
No fasting is needed. You can eat and drink as usual.