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Nightfreeze · 04-10-2006, 11:16 PM

Hi all. I have read that the 'safe period' for an EMIT test is 30 days, but does this hold true for a GCMS test as well? Since the GC/MS tests for a much smaller amount of THC metabolites, it makes sense to me that it would detect use over a much longer period of time.

Someone please tell me I'm wrong, because I have a test coming up in May (haven't smoked since Mar. 21)and there is a good possibility that it will be a GC/MS urine test.

Buzzby · 04-11-2006, 01:30 AM

Despite the numerical difference, an immunoassay test with a 50 ng/ml threshold is functionally equivalent to a GC/MS test with a 15 ng/ml threshold. This is because the strip test registers 31 THC metabolites while the GC/MS registers only the primary metabolite.

It would be grossly unfair to verify an immunoassay test with a test that had a lower functional threshold. If drug tests didn't have thresholds, just about everyone would test positive due to stuff floating around in the air.

04-10-2006, 11:16 PM	#1
Nightfreeze New Member Join Date: Mar 2006 Posts: 6 Grams: 798.95 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%	GC/MS Detection Time Hi all. I have read that the 'safe period' for an EMIT test is 30 days, but does this hold true for a GCMS test as well? Since the GC/MS tests for a much smaller amount of THC metabolites, it makes sense to me that it would detect use over a much longer period of time. Someone please tell me I'm wrong, because I have a test coming up in May (haven't smoked since Mar. 21)and there is a good possibility that it will be a GC/MS urine test.

04-11-2006, 01:30 AM	#2
Buzzby Buddhist Curmudgeon Join Date: Aug 2004 Posts: 14,470 Grams: 48,157.18 Groans: 37 Groaned at 49 Times in 41 Posts Thanks: 530 Thanked 3,920 Times in 1,945 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	Despite the numerical difference, an immunoassay test with a 50 ng/ml threshold is functionally equivalent to a GC/MS test with a 15 ng/ml threshold. This is because the strip test registers 31 THC metabolites while the GC/MS registers only the primary metabolite. It would be grossly unfair to verify an immunoassay test with a test that had a lower functional threshold. If drug tests didn't have thresholds, just about everyone would test positive due to stuff floating around in the air. __________________ 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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