| Test Name: | Hemoglobin S Quantitation by HPLC |
| Epic Order Code: | LAB5087 | | |
| CPT Code: | 83021 | | |
| Specimen(s) Type: | Whole Blood, 5.0 mL |
| Acceptable Container(s): |  Top is purple (lavender). |
| Testing Schedule: | Monday, Tuesday and Friday, 7 a.m.-3 p.m. |
| Turn Around Time: | STAT: Notify Clinical Pathologist on call if testing is needed outside routine testing hours. |
| | Routine: 3-5 days |
| Collection Information: | No special patient preparation is required. Obtain specimen by standard collection procedures. |
| Transport Information: | Deliver to lab immediately. All specimens must be signed into the laboratory. |
| Reference Clients: | If unable to deliver to the lab immediately, store and transport specimen at 2-8° C. Specimen must be received in the lab within 24 hours. |
| Causes for Rejection: | Improperly labeled, incorrect container, contaminated, insufficient quantity, incorrect/delay in transport, grossly hemolyzed or lipemic, clotted. |
| Reference Range: | 0.0% |
| Additional Information: | Blood transfusions may obscure or dilute abnormal Hgb for 3-4 months. |