1 doctor weighed in:

Will having menstrul blood in your urine sample alter results of a lab urine drug test?

1 doctor weighed in
Dr. Jeff Livingston
Obstetrics & Gynecology

In brief: No

Having blood in a urine sample will not affect the urine drug screen.
It will show up as blood and or as red blood cells in the urine test.

In brief: No

Having blood in a urine sample will not affect the urine drug screen.
It will show up as blood and or as red blood cells in the urine test.
Thank
Get help from a real doctor now
Dr. Jane Van Dis
Board Certified, Obstetrics & Gynecology
16 years in practice
47M people helped
Continue
111,000 doctors available