Test ID: METHL
CPT code: 83045
LOINC: 2614-6
Specimen Type: Heparin or EDTA
Frequency: Setup: Daily; TAT 1 day
Instructions: MIN 1.0 mL whole blood from Lavender or Green tube unopened.
Text: Evaluate cyanosis, polycythemia, hemoglobinopathies; work up dyspnea and headache; evaluate drug or chemical toxicity.
Methodology: Photometric