2 doctors weighed in:

Is it possible to get a false negative for marijuana on a doctors office drug test? At home drug test shows positive

2 doctors weighed in
Dr. Gurmukh Singh
Pathology

In brief: Possible

Any test can give a false positive or false negative result.
If you do weed, you know the true state and do not need to test. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.

In brief: Possible

Any test can give a false positive or false negative result.
If you do weed, you know the true state and do not need to test. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.
Dr. Gurmukh Singh
Dr. Gurmukh Singh
Thank
Dr. Alan Wartenberg
Addiction Medicine

In brief: Not likely

if a home test is positive, the kinds of screening tests that doctors use in their offices are at least as sensitive, and most even more so, than home test kits.
In addition, physicians knowledgeable about drug testing send positive tests (or even suspicious negative tests) for confirmatory testing with highly sensitive technologies that will detect the metabolites of marijuana. Seek help.

In brief: Not likely

if a home test is positive, the kinds of screening tests that doctors use in their offices are at least as sensitive, and most even more so, than home test kits.
In addition, physicians knowledgeable about drug testing send positive tests (or even suspicious negative tests) for confirmatory testing with highly sensitive technologies that will detect the metabolites of marijuana. Seek help.
Dr. Alan Wartenberg
Dr. Alan Wartenberg
Thank
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