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HelpTest Code ESR2 Sedimentation Rate
Performing Laboratory
Hunterdon Medical Center Laboratory
Special Instructions
Erythrocyte sedimentation rate (ESR) is a non-specific measure of the presence and severity of pathological processes. The ESR is increased in all acute general infections. In localized acute inflammatory conditions variatons in the ESR depend on the nature and the severity of the process.
Specimen Required
| Container/Tube Acceptable | Lavender Top (K₂EDTA) |
| Specimen Volume | 2.0 mL |
| Minimum Volume | 1.5 mL |
Specimen Type
Whole Blood
Specimen Transport Temperature
| Ambient 15-25°C |
Specimen Stability
| Specimen | Temperature | Time Frame |
| Lavender Top (K₂EDTA) Whole Blood | Refrigerated 2-8°C | 24 hours |
| Lavender Top (K₂EDTA) Whole Blood | Ambient 15-25°C | 24 hours |
Reject Specimen Due To
1. Specimen too old for testing.
2. Clotted
3. Grossly hemolyzed
Day(s) Test Set up
Monday through Sunday
Reference Values
| Age | Female | Male | Units |
| >16yrs-50yr | 0-19 | 0-14 | mm/hr |
| > 50 years | 0-29 | 0-19 | mm/hr |
| Newborn-28th day | 0-2 | 0-2 | mm/hr |
| >28 days-16yr | 0-13 | 0-13 | mm/hr |
Methodology
Quantitative capillary photometry (aggregation).
CPT Code
86561
Loinc Code
30341-2