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Sedimentation Rate
| Item | Value | ||||
|---|---|---|---|---|---|
| Approval req'd? | No | ||||
| Available Stat? | Yes | ||||
| Test code | ESR | ||||
| Performed by | Parnassus & Mt. Zion Hematology | ||||
| In House Availability | Test available 24 hours per day 7 days per week | ||||
| Method | Westergren | ||||
| Container type | Lavender top | ||||
| Amount to Collect | 2 mL blood | ||||
| Sample type | EDTA whole blood | ||||
| Preferred volume | 2 mL blood | ||||
| UCSF Rejection Criteria | > 5 hrs at room temperature, >12 hrs at 4°C | ||||
| Units | mm/h | ||||
| Normal range |
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| Synonyms | Sed rate; ESR; Erythrocyte sedimentation rate | ||||
| Stability | Sample stable for 12 hours at 4C, for only 5 hours at room temperature. | ||||
| Turn around times | STAT 1 hour, Routine 4 hours | ||||
| Additional information | The erythrocyte sedimentation rate increases with age; the upper limit is not clearly defined for patients > 60 years old. | ||||
| LOINC code | 4537-7 | ||||
| Last Updated | 1/16/2011 2:02:41 PM | ||||
| Entry Number | 847 |
If you have additional questions regarding this test, please call: 415-353-1667