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TPMT GENETICS

Mnemonic

TPMT GEN

Guidelines

A qualitative evaluation, to determine a patient’s genetic ability to produce the thiopurine methyltransferase (TPMT) enzyme.

Specimen Collection Requirements

Collect

Whole Blood, one lavender (EDTA) top tube

Handling

Refrigerate

Minimum Volume

5.0 mL EDTA whole blood

Transport

Refrigerated

Stability

Ambient: 10 days; Refrigerated: 30 days; Frozen: Unacceptable

Testing Information

Performed

Varies

Reported

4-6 days

Referral Lab

Prometheus (3300)

Reference Values

Reference Values

Interpretation provided.

CPT Codes

81401

Last Updated: Thursday, January 5, 2017 03:41:44 AM


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