Testing Method:
Nail
Amphetamines Methamphetamine 1-3 Days 1-3 Days Up to 90 Days Up to 90 Days Minutes – to 2 days Minutes – to 2 days Fingernails: 3-6 months
Toenails: Up to 1 year
Cocaine 1-3 Days  Up to 90 Days Minutes – 2-3 days Fingernails: 3-6 months
Toenails: Up to 1 year
Marijuana Occasional Use: 1-3 Days Chronic Use: up to 30 Days Up to 90 Days Minutes – 24 hours Fingernails: 3-6 months
Toenails: Up to 1 year
Opiates 1 – 3 Days Up to 90 Days Minutes – to 3 days Fingernails: 3-6 months
Toenails: Up to 1 year
PCP Occasional Use: 1 – 5 Days Up to 90 Days Minutes – 2-3 days Fingernails: 3-6 months
Toenails: Up to 1 year
Barbiturates 1 – 3 Days;  Phenobarbital 10 Days Up to 90 Days 24-36 hours Fingernails: 3-6 months
Toenails: Up to 1 year
Benzodiazepines 1 – 14 Days Up to 90 Days 24-36 hours Fingernails: 3-6 months
Toenails: Up to 1 year
Methadone 1 – 3 Days Up to 90 Days 24-36 hours Fingernails: 3-6 months
Toenails: Up to 1 year
Propoxyphene 1 – 7 Days Up to 90 Days 24-36 hours Fingernails: 3-6 months
Toenails: Up to 1 year
MDMA/Ecstacy 2 – 4 Days Up to 90 Days Minutes – to 2 days Fingernails: 3-6 months
Toenails: Up to 1 year
Bath Salts 1 – 3 Days Not currently tested Not currently tested Not currently tested
Rohypnol 1 – 3 Days Not currently tested Not currently tested Not currently tested
Ketamine 1 – 2 Days Not currently tested Not currently tested Not currently tested
LSD 8 Hours Not currently tested Not currently tested Not currently tested
Anabolic Steroids Take orally: up to 3 week
Injected: 3 months – 1 year
Not currently tested Not currently tested Not currently tested
K2/Spice 1 – 3 Days Not currently tested Not currently tested Not currently tested