A 19-year-old female asked:
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if you drink a glass of water an hour before you go to bed will it dilute your first morning urine for a pregnancy test or will it be okay to use?

1 doctor answer
Dr. Marsha Davis
27 years experience Internal Medicine
Not much!: But youigjt have to get up to go during the nigjt!
Answered on Jul 25, 2013

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Rule out UTI first: Need a urinalysis done first.

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