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HelpTest Code FAZAT Azathioprine (Imuran) as 6-Mercaptopurine
Reporting Name
Azathioprine (Imuran)Performing Laboratory
Medtox Laboratories, Inc.Specimen Type
VariesSpecimen Required
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (sodium heparin) tube(s), plasma gel tube is not acceptable. Spin down and send 2 mL of sodium heparin plasma refrigerated in a plastic vial.
Serum
Draw blood in a plain, red-top tube(s), serum gel tube is not acceptable. Spin down and send 2 mL of serum refrigerated in a plastic vial.
Specimen Minimum Volume
0.3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Varies | Refrigerated (preferred) | 14 days |
| Frozen | 180 days | |
| Ambient | 72 hours |
Reject Due To
| Hemolysis | NA |
| Lipemia | NA |
| Icterus | NA |
| Other | NA |
Reference Values
Units: ng/mL
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.
Day(s) Performed
Monday through Sunday
CPT Code Information
80299
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FAZAT | Azathioprine (Imuran) | 16419-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z2055 | 6-Mercaptopurine | 16419-4 |
Report Available
5 to 9 daysMethod Name
High Performance Liquid Chromatography with Ultraviolet Detection (HPLC-UV)