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Regional Medical Lab
Test Directory


Ketamine and Metabolite Quantitative, Serum or Plasma

Order Name Ketamine S
Test Number: 7001000
Revision Date 04/24/2021
Test Name Methodology LOINC Code
Ketamine Quantitative
Quantitative Gas Chromatography-Mass Spectrometry  
Norketamine Quantitative
Quantitative Gas Chromatography-Mass Spectrometry  
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 3 mL (1.2 mL) Serum Clot Activator (Red Top, No-Gel) Refrigerated
Alternate 1 3 mL (1.2 mL) Plasma EDTA (Lavender Top) Refrigerated
Instructions Separate from cells ASAP or within 2 hours of collection. Transfer 3 mL(1.2 mL) serum or plasma to a Standard Transport Tube.
Unacceptable Conditions: Separator tubes.
Stability: Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 9 months
Testing Schedule Varies 
Expected TAT 5-8 days  
Notes Reference Lab: ARUP
Test Code: 91507
Click Here to view information on the ARUP website.
CPT Code(s) 80357 (Alt code: G0480)
Lab Section Reference Lab