CPT/HCPCS
82180
Order Code
CH327
Turnaround Time
4 days
Specimen Requirements
Specimen Source
Plasma
Transport Container
(Specimen Container)
(Specimen Container)
EDTA (lavender-top) tube
Preferred Specimens
Light protected
Minimum Volume (uL)
1mL
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Transport Frozen
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 8 hrs |
Reject Criteria
Hemolysis
Lipemia
Received room temperature
Received refrigerated
Not protected from light
EDTA plasma
Lithium heparin plasma
Thawed samples
Special Instructions
Centrifuge within 1 hour of collection. Immediately separate serum from the cells into a clean, plastic transport tube. Freeze. Protect from light. If unable to centrifuge immediately, sample should be covered with aluminum foil immediately and placed on ice until serum can be separated from cells. Transport to the laboratory frozen. Patient Preparation: Overnight fasting is preferred. Refrain from eating fruits and from taking vitamin C supplements for 24 hours prior to collection
Test Details
Methodology
Chromatography/Mass Spectrometry
Reference Ranges
Male:
0.2-2.1 mg/dL
Female:
0.3-2.7 mg/dL
