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A member asked:
Would my drinking a lot of water be more likely to cause a false posit or f.neg, during 24hrurine:catecholamine?metanephrine &normetane? creatinine?
4 doctors weighed in across 2 answers
Prob won't matter: Those tests are very likely to be detected whether you drank a lot of water or not.
Answered 11/11/2012
5.5k views
Thank
False negative: Drinking large amounts of water could dilute the sample enough to cause false negative. Most drug screens will also factor dilution and see this as invalid test.
Answered 11/10/2012
5.5k views
Thank
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