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: 12816
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

can you freeze clean urine for drug test and how long

Resolved Question:

can you freeze clean urine for drug test and how long
Submitted: 4 years ago.
Category: Drug Testing
Expert:  Family Physician replied 4 years ago.
Freezing urine does not impact the results of urine tests.

HOWEVER, if you are considering trying to substitute frozen urine for a drug test - this could result in a number of negative consequences. If discovered, you could face criminal charges, loss of job etc, since a substituted specimen is treated the same as a positive.
Family Physician and other Drug Testing Specialists are ready to help you
Customer: replied 4 years ago.
for how long
Expert:  Family Physician replied 4 years ago.
Long storage, keeping the specimen about -20 degrees celcius (-4 degrees F) can reduce the level of creatinine - which could result in the specimen being reported as dilute or substituted.

Related Drug Testing Questions