Rapid Drug Test Uncut Sheets

Immunoassay Drug Test Market Research and Performance Reference

The standard procedure of drug testing is: Immunoassay + Chromatographic assay (when immunoassay tests get a positive result)

General analysis of source sample：

Source Sample	Invasiveness of Sample Collection	Detection Time	Cutoff Levels	Advantages	Shortcomings	Cost
Urine	Intrusion of privacy	Hours to days	Yes	High drug concentrations;established methodologies;quality control and certification adulterate	Cannot indicate blood levels; easy to adulterate	Low to moderate
Blood	Highly invasive	Hours to days	Variable limits of detection	Correlates with impairment	Limited sample availability; infectious agent	Medium to high
Hair	Noninvasive	Weeks to months	Variable limits of detection	Permits long-term detection of drug exposure; difficult to adulterate	Potential racial bias and external contamination	Moderate to high
Sweat	Noninvasive	Days to weeks	Screening cutoffs	Longer timeframe for detection than urine; difficult to adulterate	High inter-individual differences in sweating	Moderate to high
Saliva	Noninvasive	Hours to days	Variable limits to detection	Results correlate with impairment; provides estimates of blood levels	Contamination from smoke; pH changes may alter sample	Moderate to high
Breath	Noninvasive	Hours	No, except for ethanol	Ethanol concentrations correlate with impairment	Very short timeframe for detection; only detects volatile compounds	Low to moderate