How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Family Physician Your Own Question
Family Physician
Family Physician, Board Certified MRO
Category: Drug Testing
Satisfied Customers: 2039
Experience:  Medical Review Officer - Physician Trained and certified in drug test interpretation
Type Your Drug Testing Question Here...
Family Physician is online now
A new question is answered every 9 seconds

I need to get more information on the validity of a blood

Customer Question

Hello, I need to get more information on the validity of a blood sample tested for alcohol.
One of the posts makes reference to samples able to ferment thereby increasing the alcohol level before lowering.
I'm looking for data/research on this topic. Sample stored in a vial, 21 days, refrigerated (I assume)
What if the sample was not immediately stored in refrigeration? Could that cause a start of fermentation?
Thank you
Submitted: 1 year ago.
Category: Drug Testing
Expert:  Dr. David replied 1 year ago.

This is Dr. David

if the sample was not refrigerated and had some bacteria or yeast in the sample, and there was a source of sugar in the sample, the yeast can turn sugar into alcohol.

but the chances of this happening are very very low

there are some medical conditions where patients are not drinking alcohol and they can have alcohol in their system.

this is the Yeast auto brewery defense

is an article on it

but this condition is very rare.

let me know if you have questions.