Urine Tests For Hydrocodone And False Possitives

I took 2 7.5 hydrocodones about 6 weeks ago and I am on oxycodone and percocet daily, so I had my urine test at pain clinic Thursday and it came back possitive for hydro and not only that but said mega doses had been taken. They told me I had to of taken sometime in the last week to 10 days, I did not!!! I have never cheated on my meds in almost 18 years but took the hydro one Sunday at church because I forgot my own meds. I took Lortabs from 1990 to 2010 regularly until I went on morphine then Oxys.

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Hi Sharon,

A lot of these standardized drug tests have a fairly high false-positive response, where it seems as though anything is likely to show up. To my knowledge, false positives are known to occur on them anywhere from 4 to 50% of the time.

I actually just saw a post here the other day where another patient had oxycodone show up and she was only taking hydrocodone; so I'm thinking that the standard tests typically used for screenings lack the sensitivity to distinguish beyond the basic structures of the drug class vs. the drug name.

Have you asked your doctor about getting re-tested? I hope this helps!

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Just wondering, how likely is it for a false negative to show up on a test testing for hydrocodone levels. My doctor claimed that NO level of hydrocodone showed up on my test!! This has puzzled and frustrated me for years. This happened to me eight years ago though I took my meds exactly as prescribed. While I've since realized I don't need this type of pain medicine to manage my pain and am now just prescribed and taking an antidepressant, the experience of going off the hydrocodone cold turkey, especially through no fault of my own, was quite miserable. Not to mention, at the time, I thought I must be going crazy, because I knew and still know today that hydrocodone had to have been in my urine...Thanks

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@Grace,

I've read that hydrocodone can be detected in your urine for up to 3-4 days after your last dose; although some people miraculously manage to get it out of their system in only 1-2 days time.

Do you remember how long it was before your urine test after you had taken the hydrocodone?

In any case, I think it is very likely for a false negative to show up on a test for hydrocodone, where as the reliability of these cheaper drug screenings make it seem like virtually anything is possible. If you were able to try and dispute your case, I think the best way to do it would've been to get re-tested with a gas chromatograph mass spectrometer. This method has the ability to distinguish the exact substance in question, but is not initially performed because of cost. However, it is often a follow-up option for those facing serious consequences such as a job loss or jail time. I think companies who don't use this method right off the bat are just too scared to spend a little extra money for the right results.

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Thanks for the response. In response to your question, The last time I took the hydrocodone prior to the urine test was the night before!
Grace

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detoxed from oxy 80mg(3day)and dilaudid(8mg)6 day for app. 3 yrs. stopped taking on a sat. took1 suboxine sunday,1 suboxine monday. then on wed. urine test showed pos. for oxys. they wrote it off as such long term use want 100% neg. on test. i read on here it can take 2 weeks.?Was it the sub or prev oxy 5 days ago

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At my clinic,they ask you what you have takin in the last 24hrs.I only get oxycodone 5mg,3 times a day.i have a huge tolerance and i am not a small person,im large frame and have been on percocet and oxycodone since 2006.First for excessive kidney stones now I have 3 bulging disc's and back deteriation in 6 discs in my L2 thru my S1 -L5. Anyways, I took my last pill the following night and after having oxycodone 4 days in a row and taking my last pill that following night, my drug screen tested negative for my meds! I also took 30mg on the way to my dr appt the next time and it also did not show up in the urine screen.How is this possible? well i have an absessed tooth and a dentist appt friday and clinic appt tomorrow so I am wondering in the hydros i took monday late monday night will show in my 230pm appt tomorrow.I have been takin xanax for 9yrs and phentermine for 7 so those will definitely show up but Im wondering if the hydro's will for the urine screen they use test for the last 24hrs.

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i HAD A URINE TEST DONE 12/18/12 11;30 am I took lorazapam around 4-5 am 12/18/12, and took percocet,10/325 around 1;00 am, will these med's show up in urine test taken at 11;30 am 12/18/12?.

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i have to take a urine test to determine if i have the presence of hydrocodone in my system. i was wondering if these tests measure levels or just presence. does anyone know?

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I have taken hydrocodone for over 8 years. faithfuly taken 7.5 tabs three times a day. I keep having a neg urine test. I am so frustrated because I have taken everyday as prescribed. To be accused of NOT taking it is so over whelming. I can't seem to find out how I can prove it so as I can show I am telling the truth. I have tried everything to get through to the doctor that It is wrong. I have offered to go to the office three tiimes a day to have them give me the pill and I take it in their presence but she refuses. She is addiment that urine testing is the most accurate and it cannot be wrong. I know for a fact that it is WRONG. She refused to test it via blood or swab. Now she is taking it away from me. I have osteo-arthuritis and Fibrelmialga. I cannot believe this is happening to me. I know it helps it has not taken the pain I experience eveyday away but does help. I have never asked her for more than I have been taken. To be accused of either selling it or giving it to someone else is so terrible. Now I have to see a new doctor and I don"t know how to get him to believe me. PLEASE HELP ME FIND PROOF.

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I was given a script for percocet and ibuprofen after a surgery in march, now both dr,'s knew what i was taken, but i've been taking oxycodone and oxycontin for yrs. now i was told but a dr. that i haven't even seen her before. when i did she her the only thing she said was my vit.b was low. Never mentioned anything about hydrocodone but now she told me i tested positive for having hydrocodone in my system, and she is going to drop me. Help i have a lot of problems and i didn't violate my contract.

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