The Straight Dope

Go Back   Straight Dope Message Board > Main > General Questions

Reply
 
Thread Tools Display Modes
  #1  
Old 07-07-2010, 09:47 AM
shooter2592 shooter2592 is offline
Guest
 
Join Date: Jul 2010
What is considered a dilute UA?

My friend had a random UA at work. She didnt' know about it before hand. She weighs about 123 lbs, 5'3" works out regularly. Doesn't do any drugs but does drink alcohol. She drinks about 80 ounces of water per day because she rides her bicycle to work and most of it is drank before noon. They told her that the UA was too diluted to test. They gave her another UA, this time an ETG/10 panel. She had already drank 20 ounces of coffee, 30 ounces of diet pop and 32 ounces of water. She had gone to the bathroom 4 times that morning already too. She is worried it will come back diluted again. She had also drank the night before and though drinking isn't against policy she wondered why the ETG test.

We've searched the internet and all the diluted stuff we found all said she would have been trying to cover for something but she didn't know about either UA and doesn't have anything to hide. Any information is well appreciated.
Reply With Quote
Advertisements  
  #2  
Old 07-07-2010, 11:21 AM
Nunavut Boy Nunavut Boy is offline
Guest
 
Join Date: Dec 2003
I'm assuming that UA is urinalysis and this friend is having to do a drug screen as part of their employment. If this is correct, then 'dilute' is based on the performance of whatever assay is being used. This would typically be determined by the manufacturer and/or the lab performing the testing and varies between test brands and/or labs. So, there's no good answer for your question without knowing what specific brand of test is being used and where it is being performed.
Reply With Quote
  #3  
Old 07-07-2010, 11:22 AM
postcards postcards is offline
Charter Member
 
Join Date: Aug 2001
Location: The other Long Beach.
Posts: 3,061
Could you explain your acronyms? Is a 'UA' some sort of drug test?

And the past tense of 'drink' is 'drunk'.
Reply With Quote
  #4  
Old 07-07-2010, 11:43 AM
shooter2592 shooter2592 is offline
Guest
 
Join Date: Jul 2010
Yes it was a urinalysis and would be sent off to a lab. UA is an abbreviation for urinalysis. Her original test was on July 1 and they didn't give her the results until July 6. Her first test was a basic 8 panel drug test. The ETG/10 panel tests for the 8 main drugs then 2 more and I think the ETG is for alcohol.

Last edited by shooter2592; 07-07-2010 at 11:44 AM..
Reply With Quote
  #5  
Old 07-07-2010, 11:49 AM
sqweels sqweels is offline
Guest
 
Join Date: Sep 1999
If you're deliberately trying to dilute your UA sample by drinking lots of water, are there certain vitamins, etc, that you should take so it won't be flagged as diluted?
Reply With Quote
  #6  
Old 07-07-2010, 11:52 AM
Nunavut Boy Nunavut Boy is offline
Guest
 
Join Date: Dec 2003
PEE TIP: Your most concentrated urine is the first pee you take in the morning. So, ask your friend is she can wait to pee until she gets to work.
Reply With Quote
  #7  
Old 07-07-2010, 12:25 PM
shooter2592 shooter2592 is offline
Guest
 
Join Date: Jul 2010
She didn't purposely dilute the UA she didn't even know she had it until 5 minutes before on both of them.
Reply With Quote
  #8  
Old 07-07-2010, 01:36 PM
Acsenray Acsenray is offline
Charter Member
 
Join Date: Apr 2002
Location: U.S.A.
Posts: 26,551
Quote:
Originally Posted by postcards View Post
And the past tense of 'drink' is 'drunk'.
You mean the past participle of "drink" is "drunk." The past tense is "drank."
Reply With Quote
  #9  
Old 07-07-2010, 01:45 PM
Broomstick Broomstick is offline
Charter Member
 
Join Date: Mar 2001
Location: NW Indiana
Posts: 18,729
While it's great your friend is keeping so well hydrated the amount of fluid she is consuming is resulting in urine so dilute that many drug tests won't work on it. Since "flushing" the body with excessive fluid is a trick used by many drug addicts to evade getting caught this will look suspicious in drug testing. Since they don't know her the presumption will be that she is hiding something, not that she is consuming vast quantities of fluid as part of her work out routine.

If she is subjected to random drug testing she may want to cut back a little bit on the fluids to avoid this problem in the future. If her urine really is that dilute then she's already consuming more fluid than she needs to and her kidneys are just dumping the excess. It's not hurting her - it's just not necessary.

Unless she is really, really that thirsty all the time, in which case she might have some sort of disorder like diabetes insipidus (which is not the same as diabetes type I and II with the high blood sugar). But that would require a doctor visit to evaluate and not an internet message board.

With the second test they may be using a more sensitive form of test that can work with diluted urine. Since that's usually done on suspicion someone is hiding something it's not surprising that it would test for more drugs than the usual screening. It may show that she has really dilute urine but with normal urine chemicals (just really diluted) and no sign of illicit drugs, in which case she's (probably) off the hook. If it's still too dilute to use, well, yes, there may be further repercussions depending on whether or not she works for jerks.
Reply With Quote
  #10  
Old 07-07-2010, 02:09 PM
Chief Pedant Chief Pedant is offline
Guest
 
Join Date: Feb 2007
"What is considered a dilute UA?"

For the purposes of drug testing, one with a specific gravity of under 1.003, usually. By way of contrast, a SG of 1.030 would be fairly concentrated urine.

Your average urine drug test looks for presence or absence of drugs--i.e. it is a "qualitative" drug test. There are minimum threshold concentrations below which the test is read as negative, even if teeny tiny trace amounts of something are present. Therefore, diluting urine like crazy by excess free water intake is one means of trying to defeat a urine drug screen--it also dilutes out the concentration of drugs and drug metabolites eliminated in the urine.

The body excretes free water, resulting in very dilute urine if you drink a lot of it. There are variety of pathologic and psychologic conditions which lead to excess water drinking, but in general the average person doesn't pee out urine with a SG of less than 1.003, so a repeat urine is requested if a sample comes in that is that dilute.

Last edited by Chief Pedant; 07-07-2010 at 02:11 PM..
Reply With Quote
  #11  
Old 07-07-2010, 02:15 PM
Acsenray Acsenray is offline
Charter Member
 
Join Date: Apr 2002
Location: U.S.A.
Posts: 26,551
Quote:
Originally Posted by Broomstick View Post
While it's great your friend is keeping so well hydrated the amount of fluid she is consuming is resulting in urine so dilute that many drug tests won't work on it.
Yeah, why doesn't she just cut down her fluid intake for a while? The figure that's usually thrown around is 64 ounces of water a day.
Reply With Quote
  #12  
Old 07-07-2010, 02:42 PM
Mean Mr. Mustard Mean Mr. Mustard is offline
Guest
 
Join Date: Dec 2009
Quote:
Unless she is really, really that thirsty all the time, in which case she might have some sort of disorder like diabetes insipidus (which is not the same as diabetes type I and II with the high blood sugar).
No, not the same, but it should be noted that the symptom of increased thirst applies to both diabetes insipidus and diabetes mellitus (aka type I/II)

mmm
Reply With Quote
  #13  
Old 07-07-2010, 03:31 PM
Colophon Colophon is offline
Guest
 
Join Date: Sep 2002
Quote:
Originally Posted by acsenray View Post
Yeah, why doesn't she just cut down her fluid intake for a while? The figure that's usually thrown around is 64 ounces of water a day.
I agree that the volumes of fluid she is drinking are ludicrous. I ride my bike to work as well and I maybe drink 30-40 ounces of fluids in total in a 12hr working day, and that's if it's hot. In winter, maybe about three or four small cups of tea/coffee is all.
Reply With Quote
  #14  
Old 07-07-2010, 04:25 PM
Broomstick Broomstick is offline
Charter Member
 
Join Date: Mar 2001
Location: NW Indiana
Posts: 18,729
Quote:
Originally Posted by Mean Mr. Mustard View Post
No, not the same, but it should be noted that the symptom of increased thirst applies to both diabetes insipidus and diabetes mellitus (aka type I/II)

mmm
Yes, but I'd expect that the high glucose content in Type I and II would avoid the low specific gravity of a DI whiz.
Reply With Quote
Reply



Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 05:09 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

Send questions for Cecil Adams to: cecil@chicagoreader.com

Send comments about this website to: webmaster@straightdope.com

Terms of Use / Privacy Policy

Advertise on the Straight Dope!
(Your direct line to thousands of the smartest, hippest people on the planet, plus a few total dipsticks.)

Publishers - interested in subscribing to the Straight Dope?
Write to: sdsubscriptions@chicagoreader.com.

Copyright 2013 Sun-Times Media, LLC.