Azathioprine
| Abbrev Code: | AZAT | ||
| Order Code: | LAB3302 | Order Name: | Azathioprine |
| Synonyms: | Imuran | ||
| Methodology: | High performance liquid chromatography with ultraviolet detection | ||
| CPT Codes: | 80299 x1 | ||
| Test Includes: | Measured as 6-Mercaptpurine | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Fri; results are reported within 10-14 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 4 mL |
| Minimum\Peds Volume: | 1.4 mL |
| Container: | Red (no gel) Alternate Containers: Green (lithium heparin, no gel), Green (sodium heparin, no gel) |
| Collection Instructions: | Trough levels are the most reproducible. |
Processing and Shipping
| Specimen Processing: | Aliquot 2 mL, 0.6 mL minimum. Store at room temperature. |
| Shipping Instructions: | Ship at room temperature. |
| Test Performed at or Referral Lab | Lab Sendouts (LabCorp) |
| Referral Lab number: | 811388 |
Interpretive
| Reference Range: | Azathioprine is measured as the metabolite, 6-Mercaptopurine. Therapeutic and toxic ranges have not been established. Usual therapeutic doses produce 6-Mercaptopurine serum concentrations of less than 1000 ng/mL. |
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