Collection Instructions

5 mL urine with no additives or preservatives.

Collect

Random urine

Storage/Transport Temperature

Room temperature/Refrigerated

Stability (from collection to initiation)

Ambient: 5 days; Refrigerated: 1 week; Frozen:15 days

Minimum Requirements

1 mL urine

Test Barcode Number

49654

Lab Section

Toxicology

Methodology

Liquid Chromatography-Tandem Mass Spectrometry
Test developed and characteristics determined by UR Medicine Labs

Performed

M, W, F - excludes Holidays

Reported

Within 72 hours from receipt (excluding weekends and holidays)

Synonyms

  • THC Metabolites
  • Marijuana
  • Cannabis
  • Cannabinoids
  • THC - COOH
  • THC-11-oic acid
  • 11-nor-9-carboxy-delta-9-tetrahydrocannabinol
  • 11-nor-9-carboxy-THC
  • 11-nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid

Performing Laboratory Website (click below)

Notes

The components of this test are: Creatinine, UR No Charge, Semi-Quant THC, UR, THC/CREAT Ratio.
 
Any calculated value less than 10 ng/mL will be reported< 10 ng/mL for the Semi-Quant THC,UR component. Any calculated values greater than 80,000 ng/mL will be reported as >80,000 ng/mL for the Semi-Quant THC,UR component. These results will reflex the following comment after the THC/CREAT · · Ratio "UNABLE TO CALCULATE RATIO BECAUSE A COMPONENT OF THE CALCULATION IS OUTSIDE THE LINEAR RANGE OF THE ASSAY."

Reference Interval

Positive cutoff: 10 ng/mL

Interpretive Data

For medical purposes only; not valid for forensic use. Contact the lab for additional interpretation information.

This assay is meant for the quantitative analysis of THC metabolite 11-nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid (THC-COOH) through the direct measurement of THC-COOH and THC-COOH(Gluc) and converting the measured THC-COOH(Gluc) into THC-COOH giving a quantitative result of the total THC-COOH in a patient sample.

CPT Codes

80307

LOINC Mapping

42860-7

Order Type (Individual or Group)

G

Group Test Information

Result Test ID Reportable Result Test Name Result Type Type (Alpha or Numeric) Prompt Test
UCRNC Y CREATININE,UR (NO CHARGE) I N  
QTHC Y SEMI-QUANT THC,UR I N  
THCCR Y THC/CREAT RATIO I N  

 

CPT Codes

80307

LOINC Mapping

42860-7

Pricing

Refer to Lab Account Manager. email: labservicesoutreach@urmc.rochester.edu
Specimen Requirements

Collection Instructions

5 mL urine with no additives or preservatives.

Collect

Random urine

Storage/Transport Temperature

Room temperature/Refrigerated

Stability (from collection to initiation)

Ambient: 5 days; Refrigerated: 1 week; Frozen:15 days

Minimum Requirements

1 mL urine

Test Barcode Number

49654
Testing

Lab Section

Toxicology

Methodology

Liquid Chromatography-Tandem Mass Spectrometry
Test developed and characteristics determined by UR Medicine Labs

Performed

M, W, F - excludes Holidays

Reported

Within 72 hours from receipt (excluding weekends and holidays)

Synonyms

  • THC Metabolites
  • Marijuana
  • Cannabis
  • Cannabinoids
  • THC - COOH
  • THC-11-oic acid
  • 11-nor-9-carboxy-delta-9-tetrahydrocannabinol
  • 11-nor-9-carboxy-THC
  • 11-nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid

Performing Laboratory Website (click below)

Notes

The components of this test are: Creatinine, UR No Charge, Semi-Quant THC, UR, THC/CREAT Ratio.
 
Any calculated value less than 10 ng/mL will be reported< 10 ng/mL for the Semi-Quant THC,UR component. Any calculated values greater than 80,000 ng/mL will be reported as >80,000 ng/mL for the Semi-Quant THC,UR component. These results will reflex the following comment after the THC/CREAT · · Ratio "UNABLE TO CALCULATE RATIO BECAUSE A COMPONENT OF THE CALCULATION IS OUTSIDE THE LINEAR RANGE OF THE ASSAY."
Result Interpretation

Reference Interval

Positive cutoff: 10 ng/mL

Interpretive Data

For medical purposes only; not valid for forensic use. Contact the lab for additional interpretation information.

This assay is meant for the quantitative analysis of THC metabolite 11-nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid (THC-COOH) through the direct measurement of THC-COOH and THC-COOH(Gluc) and converting the measured THC-COOH(Gluc) into THC-COOH giving a quantitative result of the total THC-COOH in a patient sample.
Coding

CPT Codes

80307

LOINC Mapping

42860-7
URM Labs Internal
Test Build

Order Type (Individual or Group)

G

Group Test Information

Result Test ID Reportable Result Test Name Result Type Type (Alpha or Numeric) Prompt Test
UCRNC Y CREATININE,UR (NO CHARGE) I N  
QTHC Y SEMI-QUANT THC,UR I N  
THCCR Y THC/CREAT RATIO I N  

 

CPT Codes

80307

LOINC Mapping

42860-7

Pricing

Refer to Lab Account Manager. email: labservicesoutreach@urmc.rochester.edu