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Doctor insights on: Alcohol Hair Follicle Test

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Dr. Stephen Southard
Board Certified, Internal Medicine
9 years in practice
12M people helped
1

1
Likely that two single pour scotches 1 month prior combined with a single pour 2 weeks prior to a hair follicle analysis test positive for alcohol?

Likely that two single pour scotches 1 month prior combined with a single pour 2 weeks prior to a hair follicle analysis test positive for alcohol?

Very unlikely: If I'm reading things correctly you are referring to three drinks in a months time. Hair testing is much more sensitive for chronic moderate-heavy drinkers. Even the best hair testing would have less than a 5% chance of picking up a (+) test with your quantity of drinking. ...Read more

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Dr. Adam Smith
Board Certified
11 years in practice
381K people helped
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Follicle (Definition)

An ovarian follicle contains a hollow ball of cells with an immature egg in the center. It is a structure within the ovary containing the egg that ...Read more


Dr. Philip Miller
Board Certified, Family Medicine
41 years in practice
13M people helped
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Dr. Adam Smith
Board Certified
11 years in practice
381K people helped
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Dr. Alan Wartenberg
Board Certified, Addiction Medicine
43 years in practice
6M people helped
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How long can hair follicle testing detect alcohol?

How long can hair follicle testing detect alcohol?

Depends: Depends on how long your hair is, and how long ago you drank. Hair-testing looks for ethyl glucuronide, and every time you drink, there is a band representing ethyl glucuronide laid down in the hair follicle. Hair grows about 1/2- i inch per month, so if your hair is 8 inches long, the hair furthest from the follicle will give anywhere from 4-8 months of info. Other hair grows slower (body hair). ...Read more

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Dr. Jovita Anyanwu
Board Certified, Internal Medicine
24 years in practice
15M people helped
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Scared to take a hair follicle test been clean for 8 or 9 months got my cdl and been clean ever sence is it still possible to fail the test?

Be rest assured: if you have not used in 8 months then the result will be negative. Sensitivity starts to decline after 90 days ...Read more

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Dr. Adam Smith
Board Certified
11 years in practice
381K people helped
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Dr. Heidi Fowler
Board Certified, Psychiatry
19 years in practice
527M people helped
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Dr. John Rhoades
Board Certified, Family Medicine
42 years in practice
1M people helped
6

6
I smoked everyday for years, but stopped on 12/31 and it's now 2/14. I cut my hair on 2/13. Will I pass a hair follicle test on 3/2?

I smoked everyday for years, but stopped on 12/31 and it's now 2/14. I cut my hair on 2/13. Will I pass a hair follicle test on 3/2?

See below: THC is incorporated INTO the hair and remains there until one of two things occur; it falls out or that section is finally cut off do either of the above two apply hair grows approx. 0.5 inch a month--you do the math ...Read more

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Dr. Donald Jacobson
Board Certified, Psychiatry
34 years in practice
17M people helped
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I have had 3 month hair follicle test forheroini last smoke to 5 or 6 months ago will it be positive i will be negative please help me with this quest?

I have had 3 month hair follicle test forheroini last smoke to 5 or 6 months ago will it be positive i will be negative please help me with this quest?

Should be negative: Detection period is 90 days, so if you smoked 5 or 6 months ago you should be fine. Please, though, do not smoke heroin again.Learn from this experience, so you need not worry in the future. Heroin addiction is horrible. Do not fall into the trap.Get help if you are craving. ...Read more

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Dr. Heidi Fowler
Board Certified, Psychiatry
19 years in practice
527M people helped
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Dr. Donald Shenenberger
Board Certified, Dermatology
19 years in practice
1M people helped
9

9
Have question about a hair follicle test?

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 help evaluate hair loss. A dermatologist may use either or both of these (or none) to help evaluate problems with the hair. If you have a specific question then perhaps you could submit it separately. ...Read more

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Dr. Robert Killian
Board Certified, General Practice
22 years in practice
327M people helped
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10
How can i pass a hair follicle test?

How can i pass a hair follicle test?

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 help you stay healthy. We all support the solution of recovery. Not the abuse or misuse of drugs or alcohol. ...Read more

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Dr. Adam Smith
Board Certified,
11 years in practice
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