Jump to content

Welcome to Grasscity Forums
Register now to gain access to all of our features. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation to your fellow members, get your own private messenger, post status updates, manage your profile and so much more. This message will be removed once you have signed in.
Login to Account Create an Account
Grasscity 10% Discount

Inconclusive Drug Test


  • Please log in to reply
 

#1
maximus100389

maximus100389

    Bronze member

  • Bronze Member
  • 294 posts

Similar Topics: Inconclusive Drug Test     x


#2
maximus100389

maximus100389

    Bronze member

  • Bronze Member
  • 294 posts


#3
Neurosis

Neurosis

    jellymeat

  • Registered Upgraded
  • 6,157 posts
I'm going to hazard a guess and say that there is no detectable amounts of THC in your urine as you have not been smoking for a month, and the lab were not testing for dextromethorphan, doxylamine succinate or acetaminophen. There is no relation to PCP. You should be safe so long as they have not taken your hair for sampling.

Edited by Neurosis, 03 June 2010 - 03:43 AM.


#4
maximus100389

maximus100389

    Bronze member

  • Bronze Member
  • 294 posts


#5
ismokecannabis

ismokecannabis

    Snoop Dogg Resident

  • Registered Upgraded
  • 2,551 posts
I'm pretty experienced in the realm of drug tests, and I don't know if I've taken the same piss test you have, but in order for a result to come back inconclusive on the piss test I had to take, you would probably have had to had watered down piss (possibly not on purpose, but they often test for some chemical in the piss, and if it's low they figure you tried to water down the piss by drinking too much water or adding water to the sample) or you might have had a level of THC below the threshold for a positive (i think its like 20ug/l or whatever the measurement for that is, i can't remember, but it's around 20) but it still showed up. That is all I can figure, and depending on what type of test you took it could be inconclusive for different reasons, but for a traditional test (such as for probation) that's kind of how they work.

#6
Neurosis

Neurosis

    jellymeat

  • Registered Upgraded
  • 6,157 posts
At a glance there didn't seem to be any feasible way, as the molecules are fairly different in structure. That one anecdotal piece of evidence doesn't convince me otherwise to be honest, the guy could have been taking PCP. But I guess you can easily explain things to them if they come back pointing the finger at you for PCP abuse heh.

Anyway, this interested me to do a bit of reading into the metabolites.

DXM Metabolism:

Dextromethorphan (DM) is metabolized in the body to dextrophan (DT) and 3-methoxymorphinan (3-MM) by cytochrome P450 (CYP) 2D6 and 3A4, respectively, and cyclosporine (CsA) is a known substrate of CYP3A4

A urine metabolic ratio of dextromethorphan and 3-... [Pharmacotherapy. 1999] - PubMed result

PCP Metabolism:

These two minor dihydroxylated metabolites were:cis-4-(4′-hydroxypiperidino)-4-phenylcyclohexanol andtrans-4-(4′-hydroxypiperidino)-4-phenylcyclohexanol. The four major metabolites used in this study and their HPLC retention times were c-PPC at 3.9 min, t-PPC at 6.05 min, PCHP at 7.4 min, PCHAP at 8.6 min, and PCP at 9.5 min (see fig.1).
Posted Image

(Just as a side note, apparently one metabolite binds irreversibly to neurons... spooky shit. Glad to say I've never tried PCP).

I am hereby losing a lot of faith in the analytical world!

Edited by Neurosis, 03 June 2010 - 07:57 AM.





1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users