Elevated levels of urinary/saliva metabolites are found within hours of exposure and remain detectable for between 3-10 days after smoking. The test panel yields a positive result when the concentration of THC-COOH in urine usually exceeds 50 ng/mL and in saliva 12 ng. Kit includes 5 testing units.
Drug Alert – Urine Drug Test Kit Marijuana THC 5 PACK Cannabis 99% Accuracy
$39.95
11 in stock
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