THIOMETAB
Thiopurine Metabolites
EPIC Test Procedure Code: LAB3614
Synonyms:
Thiopurine Metabolites 6-TGN
Thiopurine Metabolites 6-MMPN (6-MP)
6-Mercaptopurine
6-thioguanine
Performing Lab:
Referral Laboratory
Container Type:
Lavender top (EDTA) tube
Specimen Type:
Whole blood
Preferred Volume:
3 mL
Minimum Volume:
1 mL
Collection Procedure:
Collect the sample in EDTA ONLY. Gently invert the tube to mix. Submit refrigerated whole blood.
Do not separate the specimen. Do not freeze.
Store and Transport:
Refrigerated
Stability:
Frozen - unstable
Refrigerated - 8 days
Room temperature - 1 day
Unacceptable Condition:
Gross hemolysis, samples that are received frozen or are not EDTA whole blood will be rejected.
CPT Codes:
80299 - Thiopurine Metabolites (EAP 30021378)
(If billing Medicare, use G0480)
Method:
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Reference Ranges:
Please refer to the performing lab report for applicable reference ranges