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Family Physician
Family Physician, Board Certified MRO
Category: Drug Testing
Satisfied Customers: 12816
Experience:  Medical Review Officer - Physician Trained and certified in drug test interpretation
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I had two light beers an hour apart from each other on

Customer Question

I had two light beers an hour apart from each other on Saturday evening and was given a UA Sunday afternoon. It will be at least a few days before my sample reaches the lab. Will this time period have any effect on my test results?
Submitted: 1 year ago.
Category: Drug Testing
Expert:  Family Physician replied 1 year ago.

If the sample is stored and shipped properly, it should not impact the results.

Customer: replied 1 year ago.
I know the sample was kept in a cabinet at room temperature overnight and will probably stay that way for awhile..what impact will that have?
Expert:  Family Physician replied 1 year ago.

There are a few reports of false positive urine alcohol and EtG tests when the specimen is stored at room temperature for extended periods.

http://www.ncbi.nlm.nih.gov/pubmed/19464830

http://www.ncbi.nlm.nih.gov/pubmed/17717128

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