Methodology
Real-Time Polymerase Chain Reactions (RT-PCR) with Allelic Discrimination Analysis
Synonyms
Thiopurine Methyltransferase (TPMT); Nudix Hydrolase (NUDT15); 6-Mercaptopurine; 6-Thioguanine; Acute Lymphoblastic Leukemia (ALL); Azathioprine; Crohn's Disease; Rheumatoid Arthritis; Inflammatory Bowel Disease (IBD); Ulcerative Colitis
Specimen Type
Whole Blood
Performing Lab
Mayo Medical Lab
Epic ID
LAB09110
Lab Test Days
Monday-Friday
Standard TAT
1-4 Days
Collection Information
Specimen Required
3 mL Whole Blood
Container Type
Lavender (EDTA)
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Ambient-OK
Specimen Stability
Room Temp: 4 days(preferred); Refrigerated: 4 days; Frozen: 4 days
Test Volume Required
3 mL Whole Blood
Minimum Test Volume
3 mL Whole Blood
Processing Instructions
Send whole blood specimen in original tube. Do not aliquot.
Comments
Insurance authorization is required prior to draw for Outpatients. Ok to send on Inpatients.
CPT Codes
0034U
Revised
12/8/25
Initials
IM