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pdman · 08-19-2008, 09:38 PM

5'8", 175 lbs., been clean since June 1st, don't work out, smoked daily for about 2 years.

I have been getting ready for finding a job post graduation and stopped smoking at the end of May. I started taking a vitamin b complex and took a home drug test sometime around the beginning of July. The result was negative. I was offered a job recently and took the pre-employment screening test today which I got a non-negative result and the specimen was shipped to the lab. After that clinical test, I grabbed a home drug test again on the way home and that came up negative.

What are my chances that the result from the lab will still be positive? Could it be that the initial test at the clinic did detect THC but could be lower than the cut off? I'm a bit worried. The home drug kit I used today was First Check, I don't remember the brand I used back in July.

Thanks for help guys.

KillerWeed420 · 08-19-2008, 11:05 PM

Quote:

Originally Posted by pdman

5'8", 175 lbs., been clean since June 1st, don't work out, smoked daily for about 2 years.

I have been getting ready for finding a job post graduation and stopped smoking at the end of May. I started taking a vitamin b complex and took a home drug test sometime around the beginning of July. The result was negative. I was offered a job recently and took the pre-employment screening test today which I got a non-negative result and the specimen was shipped to the lab. After that clinical test, I grabbed a home drug test again on the way home and that came up negative.

What are my chances that the result from the lab will still be positive? Could it be that the initial test at the clinic did detect THC but could be lower than the cut off? I'm a bit worried. The home drug kit I used today was First Check, I don't remember the brand I used back in July.

Thanks for help guys.

Its usually a 50ng cutoff for thc metabolites. It'll say on the form you got from the drug test. Also were there any other drugs, prescription or otherwise. If you're on prescriptions they would have shown up and automatically went from the initial immunassay test to the GC/MS test for confirmation. Also even if you show clean on your home test you should always do some dillution for the UA because your thc metabolite levels will vary.

**Sec** · 08-20-2008, 02:48 AM

Another possibility:

The clinic gets one price for doing an instant test. They then get another fee on top of that for any that need to be confirmed at the lab.

I think the clinic is bilking the employer for laboratory tests that don't need to be run.

If you quit in May, and passed home tests, you should be just fine.

Buzzby · 08-20-2008, 03:07 AM

My guess is that the test was non-negative for some reason other than THC metabolites. If you tested negative on a THC test at the beginning of July, there's no way you'd test positive for THC seven weeks later.

**Sec** · 08-20-2008, 03:10 AM

Buzzby is right, there is always the possibility that a prescription is causing the non-negative. If you take anti-depressants, prescription pain meds, ritalin, etc...

pdman · 08-20-2008, 05:12 AM

Thanks for the feedback guys. I feel a little better but am still a bit stressed about it. Almost gone through a whole pack of cigs today, lol. Anyways, I'll keep this thread updated just in case if anyone is interested or have had similar experiences.

Also, I'm not on any medication so I guess that doesn't help my cause!

Thanks again.

08-19-2008, 09:38 PM	#1
pdman New Member Join Date: Aug 2008 Posts: 2 Grams: 340.50 Groans: 0 Groaned at 0 Times in 0 Posts Thanks: 0 Thanked 0 Times in 0 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	Negative at home, non-negative at clinic 5'8", 175 lbs., been clean since June 1st, don't work out, smoked daily for about 2 years. I have been getting ready for finding a job post graduation and stopped smoking at the end of May. I started taking a vitamin b complex and took a home drug test sometime around the beginning of July. The result was negative. I was offered a job recently and took the pre-employment screening test today which I got a non-negative result and the specimen was shipped to the lab. After that clinical test, I grabbed a home drug test again on the way home and that came up negative. What are my chances that the result from the lab will still be positive? Could it be that the initial test at the clinic did detect THC but could be lower than the cut off? I'm a bit worried. The home drug kit I used today was First Check, I don't remember the brand I used back in July. Thanks for help guys.

08-20-2008, 02:48 AM	#3
Sec Super Moderator Join Date: Dec 2005 Posts: 6,344 Grams: 41,342.03 Groans: 15 Groaned at 29 Times in 24 Posts Thanks: 686 Thanked 1,545 Times in 957 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	Another possibility: The clinic gets one price for doing an instant test. They then get another fee on top of that for any that need to be confirmed at the lab. I think the clinic is bilking the employer for laboratory tests that don't need to be run. If you quit in May, and passed home tests, you should be just fine. __________________ Guidelines. Search http://www.marijuana.com/drug-test/index

08-20-2008, 03:07 AM	#4
Buzzby Buddhist Curmudgeon Join Date: Aug 2004 Posts: 14,413 Grams: 47,631.58 Groans: 36 Groaned at 49 Times in 41 Posts Thanks: 519 Thanked 3,851 Times in 1,912 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	My guess is that the test was non-negative for some reason other than THC metabolites. If you tested negative on a THC test at the beginning of July, there's no way you'd test positive for THC seven weeks later. __________________ 60% of the people of America now say we are heading toward a depression. Not a recession, a depression. We are in desperate need of profitable industries that we can tax. Um... Now can we legalize pot? ~ Bill Maher Theocracy Watch

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08-20-2008, 03:10 AM	#5
Sec Super Moderator Join Date: Dec 2005 Posts: 6,344 Grams: 41,342.03 Groans: 15 Groaned at 29 Times in 24 Posts Thanks: 686 Thanked 1,545 Times in 957 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	Buzzby is right, there is always the possibility that a prescription is causing the non-negative. If you take anti-depressants, prescription pain meds, ritalin, etc...

08-20-2008, 05:12 AM	#6
pdman New Member Join Date: Aug 2008 Posts: 2 Grams: 340.50 Groans: 0 Groaned at 0 Times in 0 Posts Thanks: 0 Thanked 0 Times in 0 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	Thanks for the feedback guys. I feel a little better but am still a bit stressed about it. Almost gone through a whole pack of cigs today, lol. Anyways, I'll keep this thread updated just in case if anyone is interested or have had similar experiences. Also, I'm not on any medication so I guess that doesn't help my cause! Thanks again.

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