Can a UTI cause a false-positive drug test?

A sample of urine provides a drug history from the last two to three days for most drugs, and an even longer period for marijuana. Will a UTI affect the result of drug and/or alcohol testing? Certain bacteria may interfere with drug detection but will not generate a false positive.

Will UTI medicine show up on a drug test?

Antibiotics Quinolone antibiotics, such as Levaquin (levofloxacin) or Cipro (ciprofloxacin) are commonly prescribed for certain infections (urinary tract, sinus, etc.). They have been shown to trigger a false positive urine result for opiates.

What are the chances of a false-positive drug test?

Drug tests generally produce false-positive results in 5% to 10% of cases and false negatives in 10% to 15% of cases, new research shows.

What causes false positives for cocaine tests?

One of the most common antibiotics, amoxicillin (Amoxil), can cause a false-positive test for cocaine. Quinolones , a group of antibiotics including ofloxacin (Floxin), levofloxacin (Levaquin) and ciprofloxacin (Cipro), may produce false-positive tests for amphetamines and opioids.

What does false positive drug screen mean?

In drug screening, a “false positive” means that a sample is falsely reported as positive even if it is actually drug-free. Conversely, a “false negative” means that a sample is reported negative despite the donor actually having taken drugs prior to the test.

What can cause false positive for amphetamines?

Some more commonly prescribed prescription medicines that may cause a false positive reading for amphetamines include: Amantadine, Bupropion, Chlorpromazine, Desipramine, Dextroamphetamine, Ephedrine, labetalol, Methamphetamine, Methylphenidate , Phentermine , Phenylephrine , Promethazine, Pseudoephedrine , Ranitidine , Selegiline ,…

What can cause a false positive for codeine?

The most common cause for a false positive codeine test would be ingestion of poppy seeds in the 48 hours prior to taking the drug test.