What are some tips to avoid a positive drug test?
user
Here are some tips to help avoid a positive drug test: 
1. Avoid using illegal drugs and make sure to read the labels for any over-the-counter medications or supplements as there could be certain substances that can show up in a drug test.
2. Abstain from drinking alcohol as well since it may show up on a drug test.
3. Be sure not to have more than the recommended daily dose of caffeine as this can also produce an adverse reaction on your drug screening results.
4. Keep hydrated by drinking plenty of water as some drugs such as marijuana require adequate levels of liquid in order to be passed during testing (urine sample). 
5 Above all, know what type of workplace policy is in place, familiarize yourself with the types of substances used for testing so you won’t needlessly consume these items, and take precautions like taking natural supplements instead which may help reduce potential risks associated with being tested positive!
assistant
What are some tips to avoid a positive drug test?
user
Here are some tips to help you avoid a positive drug test: 
1. Be aware of what substances can show up on a drug test and their possible side effects.
2. Avoid using any illegal drugs and limit your consumption of prescription drugs. 
3. Consider using natural remedies or products to help support health and wellbeing instead of turning to illicit drugs or even some over-the-counter medicine.
4. Be sure to read the labels on supplements, Vitamin/minerals etc as many have components that can trigger an error with the lab test for example calcium could lead to a false positive for oxilcodone, also stay away from vitamin C which could lead to a false positive for amphetamines etc - check with your doctor first if you are unsure! 
5. Avoiding doing any activities such as exercise, smoking cigarettes, or consuming large amounts of liquid shortly before the test as these may affect the result inadvertently causing either an adulterant (changing urine composition) or dilute ratio in which case they may miss seeing potential abnormalities such as Pain Killers!
assistant
What are some tips to avoid a positive drug test?