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 Dr. D. Love Your Own Question
Dr. D. Love
Dr. D. Love, Doctor
Category: Drug Testing
Satisfied Customers: 18544
Experience:  Family Physician for 10 years; Hospital Medical Director for 10 years.
Type Your Drug Testing Question Here...
Dr. D. Love is online now
A new question is answered every 9 seconds

Ive been smoking marijuana I have 13 days before I have to

Customer Question

Ive been smoking marijuana I have 13 days before I have to take a urine test. And I plan on drinking lots of water and using my sauna. Will I pass a urine drug test.
Submitted: 1 year ago.
Category: Drug Testing
Expert:  DIEGO BONILLA replied 1 year ago.


This is Dr. Bonilla.

I understand your concerns. The threshold for cannabis is 50 ng. Depending of the use and frequency the test can be positive. For example: infrequent user the test will be positive up to 5 days after exposure. Frequent users after 15 days after cannabis was used. Please rate my answer. Let me know if you have any other questions.


Expert:  Dr. D. Love replied 1 year ago.

The other expert has opted out.

After 13 days, the vast majority of marijuana smokers would be negative. Chronic heavy smokers can commonly remain positive for 30 days, and rarely even longer. But most people do not fall into this category, so most people would be negative for a test performed 13 days after last use.