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A 48-year-old female asked:

Im scheduled to have surgery in 35 days and was suppose to quit smoking for 90 days. ive been tobacco free for7 days now . will i fail a blood test?

1 doctor answer1 doctor weighed in
Dr. Lynne Weixel
Clinical Psychology 36 years experience
Don't worry: Drink lots of water every day (8-10 glasses), get Vitamin C (fruit) and be active. Avoid passive smoke. Blood clears faster than hair, but slower than urine and there are false positive reasons you could fail. But you'll probably pass if you don't slip before the surgery. Anyway - it's too late to worry. Do your best. The reason is for optimal healing - important but not critical. Relax.

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Last updated Jun 21, 2014

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