Specimen Requirements

Title

METHOTREXATE

Specimen Requirement

Draw blood in a PLAIN RED-TOP tube. Spin, separate and send 3.0 mL serum (1.0 mL mininum) frozen in an AMBER screw-capped plastic vial. PROTECT FROM LIGHT

Indicate “serum/red top” on transport tube; contact lab for dry ice. Once ice is received ship frozen sample.

Methodology

Stability

Frozen 6 months

Reference Range

By Report*

Turnaround

1 day -- Performed Sun-Sat

Clinical Use

Test Code

MTXM