THC QuaNT Ur Confirmation THCQNTUR

Synonyms
Allscripts (AEHR) Order Name	THC Screen and Confirmation, Urine
Sunrise Clinical Manager (SCM) Order Name	THC QuaNT Ur Confirmation
EPIC Order Name	Urine THC Confirmation -Tetrahydrocannabinol (THC, marijuana) Metabolite, normalized to creatinine
Clinical Info	Detect use of THC, a psychoactive drug
Specimen Type	Urine
Specimen Volume	20 ml Random urine (5.0 mL min)
Container	Urine Cntr
Collection Instructions	Container/Tube: Urine transport container Specimen: 20 ml Random urine (5.0 mL min) Transport Temperature: Refrigerated Stability 3 Days Refrigerated 14 Days Frozen
Transport Instructions	Refrigerated
Specimen Stability
Methodology	Gas chromatography/mass spectrometry (GC/MS); Spectrophotometry (SPEC)
Days Performed	TAT 5- 7 Days
Performing Laboratories	Medtox Laboratories, Inc
CPT	80349 82570
PDM	5960085 , 5960085
Result Interpretation THC usage ratio = THC MTB, ug/gm creat, later specimen ------------------------------------ THC MTB, ug/gm creat, earlier specimen Note: Specimens must be collected a minimum of 24 hrs apart. THC usage ratio >0.5 as predictor of new marijuana use: Prediction accuracy = 85.4% False positives = 5.6% False negatives = 8.6% THC usage ratio >1.5 as predictor of new marijuana use: Prediction accuracy = 74.2% False positives = 0.1% False negatives = 27.0% (Huestis Ma and Cone EJ, National Institute of Health) Note: MEDTOX recommends making comparisons on specimens collected at one week intervals or longer. This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration
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