Erythrocyte Sedimentation Rate
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Sed rate, ESR.
To assist in diagnosing acute infection in diseases such as tissue necrosis, chronic infection, and acute inflammation.
Whole blood collected in a completely filled lavender-top (EDTA) tube for the modified Westergren method or a completely filled gray-top (3.8% sodium citrate) tube for the original Westergren method.
(Method: Westergren or modified Westergren)
|Newborn||0–2 mm/hr||0–2 mm/hr|
|Less than 50 yr||0–15 mm/hr||0–25 mm/hr|
|50 yr and older||0–20 mm/hr||0–30 mm/hr|