Test Details

Mnemonic

MTHFA

Ordering Code

3400501

CPT-4 Code(s)

81291

Specimen Information

The following germline genetic tests from Quest require physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, OR, SD or VT or test is performed in MA.

Collect

Lavender EDTA

Specimen Preparation

Send 5.0 mL whole blood.

Alternate Specimen

Whole blood: Dark blue EDTA, sodium or lithium heparin, ACD A

Minimum Volume

3.0 mL

Transport Temperature

Room temperature

Rejection Criteria

Serum, plasma, tissue specimens

Stability

Room temperature: 8 days
Refrigerated: 8 days
Frozen: 30 days

Methodology

Polymerase Chain Reaction and Detection
more

Reference Range

See report
more

Performing Laboratory

Quest SJC
more