A member asked:

I had a blood draw fri and they messed up my sample for cotinine. i smoked one cig the week before & 3 this sat. how long before i can retest?

A doctor has provided 1 answer

On the safe side...: ...10 days for urine and blood tests. Staying well-hydrated, exercising & avoiding drinking alcohol may decrease detection time. To be really safe, however, take this opportunity to QUIT SMOKING altogether. You've already shown that you can do so for a week, so why not for the rest of your long healthy life????

Answered 10/6/2015

2.2k views

Thank

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