A member asked:

I had four separate urine drug test resulting in negitve diluted. my med record show 10 year history of low creatine levels. what could cause this?

A doctor has provided 1 answer

Unclear question: Did the lab tell you that urine was too dilute for a valid test? If so you could limit your fluid intake the day before and provide first voided sample. What is your serum creatinine level?

Answered 4/8/2019

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