Test 101

Passing Drug Test

The only real deciding factor between a passing drug test result and a failing one is drug use or lack of use. If you’ve used drugs in a time period of up to 30 days before testing, you’ll likely not get a passing drug test result; especially if the test performed is a hair test. If you know you need a passing drug test result and know the approximate date of the test, your best chance to pass it is to refrain from using.

A passing drug test result is possible from blood and urine tests if a person hasn’t used anything for at least 30 days, however some trace substance may linger in the blood stream for longer. A passing drug test result from a hair test is next to impossible if you have used drugs at any time while the hair on your head has grown. If you are a frequent drug user, the trace is detectable beyond 30 days even in urine and blood tests. In fact, a daily marijuana user can have traces of THC in their bloodstream for up to 60 days.

In some cases, a false positive results because of over the counter medications. Common sources of a false positive for amphetamines include sinus, cold, and allergy OTC medications such as Nyquil, Sudafed, Tavist-D, Afrin, and so forth. If the OTC medication contains ephedrine or derivative such as pseudoephedrine or desoxyephedrine, a false positive can result. In some instances, providing a list of OTC medications and your reasons for currently taking them may suffice for rescheduling a drug test until you are off the medication.

Prescription drugs can also register false positives, but a note from the prescribing doctor or a copy of the prescription will often void a false positive result and satisfy the administrator. Also possible, but rarely occurring, are false positives from consumption of certain foods such as poppy seeds. However, poppy seeds would have to be ingested at an almost alarming rate, such as 3 poppy seed bagels 1 hour prior to a drug test to register a false positive for opiates.

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