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Test Code LAB1175 Azathioprine (Imuran) as 6-Mercaptopurine

Additional Codes

Mayo Test ID
FAZAT

Reporting Name

Azathioprine (Imuran)

Performing Laboratory

Medtox Laboratories, Inc.

Specimen Type

Varies


Specimen 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 Special Container
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 days

Method Name

High Performance Liquid Chromatography with Ultraviolet Detection (HPLC-UV)