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Additional Codes
LAB685
Performing Laboratory
MBMC Main Laboratory
Methodology
Enzyme Immunoassay
Specimen Requirements
Specimen Type: Plasma
Container/Tube: Mint-green top (lithium
heparin gel)
Specimen Volume: Full tube
Specimen Minimum Volume: 2.5 mL
Alternative Specimen for Outpatient: Plasma
Alternative Container/Tube: Gold, Serum gel or Red top (serum)
Alternative Specimen Volume: Full tube
Specimen Transport Temperature
Ambient
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: within 4 hours
Reference Values
Therapeutic concentration: 1.5-5.0 mcg/mL
Critical result (automatic call-back): ≥6.0 mcg/mL
Test Classification and CPT Coding
Test Classification:This test has been cleared
or approved by the U.S. Food and Drug Administration and is used
per manufacturer’s instructions.
CPT Code:
80176
Stability
5 days Refrigerated