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Laboratory Medicine

Test catalogue

Thiopurine Methyl Transferase

Test name

Thiopurine Methyl Transferase

Lavender Tube Specimen type/requirements

Container Type = 2 Lavender Tops

Minimum Volume = 4.5 mL Blood

Specimen Handling

Collection Instructions: Collect sample in lavender top tube. Ensure both samples and requisitions are labelled properly. Write your initials, date and time of collection on the collection label or requisition.

Special Instructions: Do not freeze sample. Do not centrifuge sample.

Rejection Criteria: Plasma, gel separator, Unlabeled or Not Sufficient Quantity Samples will be rejected.

Stability: Specimen stable for 7 days at room temperature

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

2-3 weeks

Test Utilization

Reference Value

See interpretative report

Test code



TaqMan Technology Real Time PCR Assays

Testing Location

Referred Out – ON, Canada (ROSH05)

Other Information

Last Updated: June 06, 2019