2 doctors weighed in:

Why does smoking affect laboratory results?

2 doctors weighed in
Dr. Yash Khanna
Family Medicine
1 doctor agrees

In brief: Affects few tests

Smokers have slightly higher white cell count than non smokers because of irritation to lungs and blood vessels.
Smokers also have higher value for carbon monoxide.With chronic lung disease due to smoking oxygen level in blood goes down and carbon dioxide rises.

In brief: Affects few tests

Smokers have slightly higher white cell count than non smokers because of irritation to lungs and blood vessels.
Smokers also have higher value for carbon monoxide.With chronic lung disease due to smoking oxygen level in blood goes down and carbon dioxide rises.
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