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Blood Sciences Test


Greiner VACUETTE® 2.75 ml

Special Instructions

Plasma Viscosity is the preferred test

Test should be performed within 4 hours of collection

Factors affecting results

ESR may be more difficult to read on patients with a high reticulocyte count, as the red cell/plasma interface may be hazy.

Reference Range


Paeds 0 – ≤ 18 yrs

19 – < 50 yrs

≥50 yrs


≤ 10 mm/hr

≤ 15 mm/hr

≤ 20 m/hr


≤ 20 mm/hr

≤ 30 m/hr

Samples with an ESR concentration of greater than 100 mm/hr will be reported as >100 mm/hr to due the difficulty in discerning an exact concentration at this magnitude.

Test Usage

Non specific marker of inflammation


In house

Turnaround time

2 hours

Clinical Advice

Clinical advice is available from the Haematology Medical team (contact RD&E switchboard on 01392 411611)

Specimen Labelling Procedure
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