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how sensitive is a hair follicle test

A 35-year-old member asked:
Dr. Cynthia Rector
29 years experience Psychiatry
Very: In comparison to a urinalysis drug test, cocaine, PCP, opiates, and methamphetamine have proven hair analysis far more effective than urine testing in ... Read More

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A 46-year-old member asked:
Dr. Heidi Fowler
25 years experience Psychiatry
There is no way: to beat a hair follicle test for drugs of abuse. Any attempts to flush the drugs would be picked up by looking at scpecific gravity of urine.
A 27-year-old male asked:
Dr. Robert Killian
28 years experience General Practice
Wrong forum: It is extremely inappropriate to ask a physician to help you beat a drug test. That is asking us to betray the very core of our ethics. We are here to ... Read More
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A 33-year-old female asked:
Dr. Donald Shenenberger
25 years experience Dermatology
Ask away!: Not sure what you are asking. Hair follicles can be examined by doing a scalp biopsy. There is also a test called a "hair pull" or "trichogram" to hel ... Read More
A 31-year-old member asked:
Dr. Heidi Fowler
25 years experience Psychiatry
It the follicle of: The hair that is being tested - not the shaft.
A 38-year-old member asked:
Dr. Subramaniam Arumugam
56 years experience Plastic Surgery
3 months or longer: Usually, consumed drugs can be found in scalp hairs for 3 - 5 months and in body hairs for 6 - 9 months. This may vary from lab to lab also.
A 40-year-old member asked:
Dr. Elliot Duboys
44 years experience Plastic Surgery
Depends: depends upon the length of your hair
A 40-year-old member asked:
Dr. Heidi Fowler
25 years experience Psychiatry
Quite possibly: depending on how much you used and what you used.
A 45-year-old member asked:
Dr. Heidi Fowler
25 years experience Psychiatry
Can you clarify: what you smoked and what is being tested for?

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