U.S. doctors online nowAsk doctors free
A 56-year-old male asked:

I took a drug screen and it came back diluted. i did not tamper with the test by drinking a lot of water and wondered if my creatinine levels are low and if so what can i do to increase the levels in my urine.?

2 doctor answers5 doctors weighed in
Dr. Peter Duic
Emergency Medicine 10 years experience
See your pcp: Verifying that a urine sample is "human urine" includes checking the temperature, ph, specific gravity and concentration of creatinine. Disease states can cause an exceptionally low creatinine level so having your pcp do further tests is of value. The creatinine concentration tested for is rather wide and permits a quite low level as normal. So if you are lower it is worth looking into.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Gurmukh Singh
Pathology 50 years experience
Withhold water: You should refrain from taking any fluids after noon of the day prior to the day of the test and arrange to have first morning urine collected.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Apr 24, 2019


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.