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HelpTest Code ESR Erythrocyte Sedimentation Rate
Laboratory Code
LAB322
Specimen Requirements
Specimen Type: Whole Blood
Container/Tube: Lavender Top (EDTA)
Volume: 3.0 mL
Minimum Volume: 1.0 mL
Collection Instructions: Send whole blood specimen to laboratory immediately.
Specimen Stability
| Specimen Type | Whole Blood |
|---|---|
| Ambient | 4 hours (preferred) |
| Refrigerate | 1 day |
| Frozen | Not available |
Methodology
Centrifugation and Photomeric Detection
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others: Clotted, insufficient specimen or agglutination | Reject |
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 day – 50 yrs | 0 – 15 mm/hr | 0 – 20 mm/hr |
| > 50 yrs | 0 – 20 mm/hr | 0 – 30 mm/hr |
Testing Laboratory
National University Hospital
Haematology, 67725354
Useful For
A measure of acute phase response. Provides an index of disease progress.
Service Code
12105
LOINC Code Information
30341-2
Alias
ESR
Sedimentation Rate
Update
Last updated 20/03/2025