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Lab Test Dictionary

Methylenetetrahydrofolate Reductase (MTHFR), DNA Mutation Analysis (17911)

Methodology

Hybeacons

Synonyms

MTHFR

Specimen Type

Whole Blood

Performing Lab

Quest Diagnostics San Jaun Capistrano

Epic ID

LAB01402 (Under Database Tab)

Lab Test Days

Daily

Standard TAT

3-4 Days

Collection Information

Specimen Required

3-5 mL Whole Blood

Container Type

Lavender (EDTA)

Collection Instructions

MTHFR testing no longer clinically relevant to Thrombophilia diagnosis. Refer ordering physicians to ACMG website for this test. www.acmg.net/docs/MTHFR_gim2012165a_Feb2013.pdf. If physician still wishes to order, refer them to Pathology. MTHFR Mutation may occasionally be ordered for other reasons, in which case order Quest test 17911. Whole blood collected in an EDTA (royal blue-top), sodium heparin (green-top), lithium heparin (green-top), ACD solution A/B (yellow-top) tube is also acceptable.

Processing Information - Lab Use Only

Transport Temperature

Refrigerate-OK/Frozen-OK/Ambient-OK

Specimen Stability

Room Temp: 8 Days; Refrigerated: 8 Days; Frozen: 30 Days

Test Volume Required

5 mL Whole Blood

Minimum Test Volume

3 mL Whole Blood

Comments

Insurance authorization is required prior to draw for outpatients. OK to send on Inpatients.