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Dr. D. Love
Dr. D. Love, Doctor
Category: Drug Testing
Satisfied Customers: 18438
Experience:  Family Physician for 10 years; Hospital Medical Director for 10 years.
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I will have a hair follicle drug test in the next couple of

Customer Question

I will have a hair follicle drug test in the next couple of weeks. I was using marijuana pretty frequently (4-5) times a week for about 6 weeks. I have been completely clean since July 24th of 2015. I am just wondering what kind of results to expect. Body hair/armpit hair may be taken if my hair is deemed to be to short (I got my haircut to about a quarter inch a week ago)
Submitted: 1 year ago.
Category: Drug Testing
Expert:  Dr. D. Love replied 1 year ago.

Hello from JustAnswer.

It is much more difficult to predict the outcome of a hair drug test when body or armpit hair is used. Hair on the head grows at a relatively predictable rate that is true for the vast majority of people. So, a specific length of hair (1 and a half inches) will correlate with the last 90 days of hair growth and consequently reflect drug use over the last 90 days. In that situation, you would typically be negative, since it has been over 90 days since you last used the drug.

Body and armpit hair, though, is far less consistent and is quite variable between individuals. There is no length that can be reliably said to represent the last 90 days of hair growth. Therefore, testing of body or armpit hair can detect drug use for a longer period of time since last use in some individuals. And since there is a high amount of variability, the time period for a particular individual cannot be predicted.

So, if head hair that is long enough can be found and tested, then you should be fine, but if they must use body or armpit hair, the result cannot be reliably predicted and the drug use may be detected.

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

Please let me know if I can provide any additional assistance.