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What Causes False Negative Test Results For Hydrocodone In Urinalysis?

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Posted on Wed, 4 Mar 2015
Twitter Wed, 4 Mar 2015 Answered on
Twitter Wed, 1 Apr 2015 Last reviewed on
Question : taking my hydrocodone as prescribed yet it does not show up in dr/ urinalysis
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Answered by Dr. Ivo Ditah (48 minutes later)
Brief Answer:
Let them get it controlled!

Detailed Answer:
Hi and thank you so much for this query.

I am so sorry to hear about this very disturbing information that you have reported. False negatives are not uncommon and testing mistakes are possible. I will suggest that they get this sample tested again and if on consecutive testing nothing comes up, I will suggest they try a new laboratory to confirm these findings. If for real you have been taking as reported, they should repeat the testing or also ask a different facility to control.

If they fail to believe you, take a dose before the doctors and go for testing so that they can be witnesses that though you take this drug, it is not necessarily identified on testing.

I wish you well. Thanks for using our services and feel free to ask for more information and clarifications if need be.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Follow up: Dr. Ivo Ditah (15 hours later)
Thank you for your Help and they did a follow up yesterday so next time I visit this Dr. I will follow your advise
doctor
Answered by Dr. Ivo Ditah (6 hours later)
Brief Answer:
Thanks and keep me posted!

Detailed Answer:
Hi,

Thanks and keep me posted on how the next visit unfolds. I wish you well.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Ivo Ditah

Internal Medicine Specialist

Practicing since :2002

Answered : 3982 Questions

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What Causes False Negative Test Results For Hydrocodone In Urinalysis?

Brief Answer: Let them get it controlled! Detailed Answer: Hi and thank you so much for this query. I am so sorry to hear about this very disturbing information that you have reported. False negatives are not uncommon and testing mistakes are possible. I will suggest that they get this sample tested again and if on consecutive testing nothing comes up, I will suggest they try a new laboratory to confirm these findings. If for real you have been taking as reported, they should repeat the testing or also ask a different facility to control. If they fail to believe you, take a dose before the doctors and go for testing so that they can be witnesses that though you take this drug, it is not necessarily identified on testing. I wish you well. Thanks for using our services and feel free to ask for more information and clarifications if need be.