Question 1

what conditions cause false positive for thc?

Accepted Answer

Just a few factors: Factors that interfere with test results include: apple juice, blood in urine,  technical error, adulteration of specimen, lower cut off levels of screen  etc.
Confirmatory tests can be done if positive.

Question 2

i had took a month swab test last week for work. well i came up hot for thc but i haven't smoked since oct,15,2013 what causes false positive.

Accepted Answer

Many possibilities: Many possible causes of false positive.  Mislabeled specimen, laboratory error, etc.  Ask for a re-test.

Question 3

false posotive for drug test what can causr a false positive for thc on an institant drug test

Accepted Answer

A lot of products.: A screening drug test is not perfect. A site i would recommend for a list of over the counter medications and the associated false positives is: http://www.Askdocweb.Com/falsepositives.Html.

Question 4

can plaquenil cause a false positive for thc on a drug test?

Accepted Answer

Possible?: Acriquine is on a list of drug interference medications and it is a derivative of chloroquine also. drugs.com
I have not been able to locate any information to confirm that concern. If a positive(false) does occur requesting a more sensitive test in a reasonable response.

Question 5

will nicotine cause a false positive for thc on a saliva test?

Accepted Answer

No: THC and nicotine are different chemical.

Question 6

metronidazole  will it causes  false positive thc test?

Accepted Answer

: While Metronidazole is not thought to directly cause false positive THC results, it can lead to elevated liver enzymes which can cause a false positive. Other meds are known to cause false positive THC results such as: Ibuprofen, proton pump inhibitors, vitamin B supplements and Hemp seeds/milk.

Question 7

i take 40mg of omeprazole and i haven't smoked any weed in months. i have a drug test coming up, i've been testing myself at home and i've tested positive for thc. i've read that omeprazole can cause false positive? is that possible?

Accepted Answer

: If you have not smoked weed for months, the positive urine test for THC is likely false positive and it can be due to taking omeprazole. You should switch Omeprazole to Famotidine for at least a week before the test day.

Question 8

will smoking e-vapor cigarettes with proplyene glycol cause a false positive for thc on a drug test?

Accepted Answer

Doubtful : If it did, you'd likely have already heard about it.  Parolees on drug tests are usually told not to eat poppy seeds though because it can cause a positive result for opioids.

Question 9

what prescription or otc pain medications can cause a false-positive result for a urine test for thc?

Accepted Answer

Marinol: There are no otc meds that cause false positive for thc, but there are very few drugs that contain Dronabinol like Marinol which has thc and will show in your urine.

Question 10

if i drink a gallon of water how many hours before i take my drug screen should i take a b 100 complex vitamin pill to put yellow bk in my urine n will the riboflavin cause me to get a false positive drug screen for thc?

Accepted Answer

: THC will show five to seven days after the last consumption for moderate users, while this becomes ten to fifteen days for daily users. Meanwhile, heavy, long-term users can fail a urine test a month after consuming marijuana.

ref: https://thebeachcomberrehabilitation.com/

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

Thc false positive causes

A member asked:

What conditions cause false positive for thc?

A member asked:

I had took a month swab test last week for work. well i came up hot for thc but i haven't smoked since oct,15,2013 what causes false positive.

A member asked:

False posotive for drug test what can causr a false positive for thc on an institant drug test

A member asked:

Can plaquenil cause a false positive for thc on a drug test?

A member asked:

Will nicotine cause a false positive for thc on a saliva test?

A member asked:

Metronidazole will it causes false positive thc test?

A member asked:

I take 40mg of omeprazole and i haven't smoked any weed in months. i have a drug test coming up, i've been testing myself at home and i've tested positive for thc. i've read that omeprazole can cause false positive? is that possible?

A member asked:

Will smoking e-vapor cigarettes with proplyene glycol cause a false positive for thc on a drug test?

A member asked:

What prescription or otc pain medications can cause a false-positive result for a urine test for thc?

A member asked:

If i drink a gallon of water how many hours before i take my drug screen should i take a b 100 complex vitamin pill to put yellow bk in my urine n will the riboflavin cause me to get a false positive drug screen for thc?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?