How Long Does A Single Dose Of Fentanyl Stay In System?

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I'm getting a Bronchoscopy and I'm wondering how long a single dose of Fentanyl stays working in my system? I'm guessing three days but I'm not sure of the dose. I don't use any opiates or drugs at all but have to take a urine for a study 4 days later. If I drink plenty of water for those four days, will I be fine? thx

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1

According to the following Drug Use Time Table, fentanyl can be detected in urine 8-24 hrs after your last dose. However it's strange that other opioids such as hydrocodone, show a 2-4 day detection period on the chart.

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2

I wa in the hospital and received 100mcg of fentanyl ivp, how long will it be out of my system completely. Pleases want to know asap. Thank you

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3

3-5days after removing patch . Possibly 2-3 days all depends on how long an how much of the medication you have used

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4

How long does fentanyl work after taking off the patch? My fentanyl patch fell off yesterday and I said screw it, but now I'm hurting. I first put it on on Wednesday so I want to know is it safe to put a new one on today? I'm scared of this stuff. Thanks.

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