Doctor's Data Inc

Homocystine; plasma

CPT Code

82139

Specimen Requirements

2 mL plasma (deproteinized)

Collection Container/Tube

EDTA Purple-tope vacutainer tube

Transport Container/Tube

8 mL red-capped plasma transfer vial containing Sulfosalicylic Acid

Minimum Specimen Volume

0.5 mL plasma

Rejection Criteria

Grossly hemolyzed

Stability Information

Room temperature: 10 days
Refrigerated: 10 days
Frozen: 40 weeks
37°C/99°F: 10 days

Methodology

LC/MS QQQ

Turnaround Time

3 - 5 days

Reference Intervals

Sex Age
Both 1-99 years <.05 uM/dL