Home
HelpTest Code LAB20356 Thiopurine Metabolites
Department
SEND OUTS
Reference Lab Test Number
TPMTM
Collection Requirements
A trough specimen is required (collected within 1 hour prior to the next dose).
Refer To
Warde Medical LaboratoryPrimary Collection Container
Lavender 6 mL (K3EDTA)
Transport
Whole blood refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Send 5.0 mL Whole Blood.
Stability
Room temperature: 24 hours
Refrigerated: 5 days
Frozen: Unacceptable
Minimum Testing Volume
2.5 mL
Reference Range
6-TG: 235-400 pmol/8 × 10 (8) RBC
6-MMP: <5700 pmol/8 × 10 (8) RBC
Methodology
Liquid Chromatography/Tandem Mass Spectometry (LC/MS/MS)
Performed
Tuesday-Saturday
Reported
5-7 days
CPT Codes
80299
Unacceptable Conditions
Hemolysis, frozen samples, heparin whole blood.
Additional Information
Warde Medical Laboratory forwards specimen to Prometheus Laboratory.