Drug history

Question 1

drugs to ask about?

Answer 1

Tobacco
alcohol
benzodiazepines
opioids (heroin, prescription)
codeine (with ibuprofen or with paracetamol)
cannabis
Amphetamines (illicit or prescribed)
Cocaine
Ecstasy 
GHB
neuroleptics (antidepressant and antipsychotics)
neuropathic pain agents (gabapentanoids)
weight loss agents

Question 2

Use of urine drug screening?

Answer 2

4 - 7 days for short acting drugs (amphetamines and morphine)
7 - 10 days for long acting (methadone, diazepam, cannabis)
Cannot detect synthetic opioids - tramadol and fentanyl
To test for oxycodone it must be explicitly requested

Question 3

Other detection types?

Answer 3

Gas Chromatograph Mass Spectrometry (GCMS)
not medicare rebatable
sometimes offered free in labs
detects benzodiazepine metabolites and buprenorphine