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Test Directory


Cannabinoids (THC) Serum or Plasma, Quantitative

Order Name Cannabinoid S/P
Test Number: 6900553
Revision Date 10/07/2020
Test Name Methodology LOINC Code
Cannabinoids (THC) Serum or Plasma, Quantitative
Quant Liquid Chromatography-Tandem Mass Spectrometry 8170-3 
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1.0 mL (0.5 mL) Serum Clot Activator (Red Top, No-Gel) Refrigerated
Alternate 1 1.0 mL (0.5 mL) Plasma Gray (sodium fluoride/potassium oxalate) Refrigerated
Alternate 2 1.0 mL (0.5 mL) Plasma EDTA (Lavender Top) Refrigerated
Alternate 3 1.0 mL (0.5 mL) Plasma Sodium Heparin (Green Top / No-Gel) Refrigerated
Instructions Separate serum or plasma from cells ASAP or within 2 hours of collection.
Transfer 1 mL (Min: 0.5 mL) serum or plasma to a Standard Transport Tube.
Unacceptable Conditions: Hemolyzed specimens. Separator tubes. Specimens exposed to repeated freeze/thaw cycles. Plasma or whole blood collected in light blue (sodium citrate).
Specimen Stability: Room temperature: 1 week, Refrigerated: 2 weeks, Frozen: 3 years
Testing Schedule Sun-Sat 
Expected TAT 1-4 days  
Notes Reference Lab: ARUP
ARUP Test Code: 90676
Click Here to view information on the ARUP website.
CPT Code(s) 80349 (G0480)
Lab Section Reference Lab