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Test Code ARUP - LAB5115 Methylenetetrahydrofolate Reductase (MTHFR) 2 Variants (ARUP)

Important Note

Determines genetic contribution to hyperhomocysteinemia for individuals with elevated plasma homocysteine. Not recommended for recurrent pregnancy loss, thrombophilia screening, neural tube defect risk assessment, or testing of family members of individuals with identified MTHFR variants.

Additional Codes

Internal / External / Beaker: LAB5115

(ARUP: 0055655)

PERFORMED AT

ARUP Laboratories

Specimen Requirements

Patient Preparation

Collect: Lavender (EDTA), pink (K2EDTA), or yellow (ACD Solution A or B).

Specimen Preparation:Transport 3 mL whole blood. (Min: 1 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Plasma or serum. Heparinized specimens. Frozen specimens in glass collection tubes.

Stability: Ambient: 72 hours; Refrigerated: 1 week; Frozen: 1 month

Synonyms

MTHFR

MTHFR DNA assay

CPT Codes

81291

Test Schedule

Performed: Sat-Sun

TAT: 2-6 days

External Link

Additional Info

Result Report Method

Paper / Fax only