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

Clinical Info

Detect use of THC, a psychoactive drug

Specimen Type

Urine

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 Laboratory

Medtox Laboratories, Inc

CPT

80349
82570

PDM

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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