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Test Compendium


Test Code

  • 5178

Test Synonym


  • 1 mL

Minimum Volume

  • 0.2 mL

Specimen Requirements

  • Serum


  • Serum Separator Tube, Transfer Tube- Serum, Plain Red Top Tube


  • Refrigerated

Turn Around Time

  • 1 day

Special Instructions

  • 1 SST Sample collection systems from various manufacturers may contain differing materials which could affect the test results in some cases. When processing samples in primary tubes (sample collection systems), follow the instructions of the manufacturer.

Additional Information

  • Patients who are taking methotrexate, carbamazepine, phenytoin, nitrous oxide, anticonvulsants, or 6-azuridine triacetate, may have higher levels of Hcy due to metabolic interference with Hcy metabolism.

Specimen Stability

  • 4 days at 15-25 °C 4 weeks 2-8 °C 10 months at -20°C

Reference Range

  • Fasting Sex Message Lines Ref Ranges Unit of Measure
    0 - 15 umol/L