Some infections in the kidney can cause false positive dipstick test results but not false negative.
Yes, lithium can cause a false pregnancy on a pregnancy test.
No, in perimenopause hormones begin to decrease. You cannot have a false positive test.
False positive for what test?
no
weed
No.
Valerian Root can test positive as benzodiazepines. Ephedra can test positive as an amphetamine.
Poppy seeds can cause a false positive on a drug test, however it would have to be a lot of them.
It did, once, for me.
No.
Unlikely