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Chris C.
Chris C., Nurse
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Would a be able to pass a urinalysis with a cutoff of 2000

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Customer: Would a be able to pass a urinalysis with a cutoff of 2000 ng/ml after taking one tylenol 3 approximately 36 hours prior?
JA: Thanks. Can you give me any more details about your issue?
Customer: I took 1 tylenol 3 approximately 36 hours prior to a urinalysis. I am a female 35, i weigh 145 lbs and hydrate regularly. I am wondering if my results will exceed the 2000 ng/ml threshold
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Submitted: 1 year ago.
Category: Health
Expert:  Anthony Bray, MD replied 1 year ago.


A single Tylenol 3 would have 30mg of codeine .This would not be anywhere close to causing a level in urine of 2000 ng/ml 36 hours later ...You would have nothing to worry about in this regard.

I hope that this is helpful for you

Best Regards,

Anthony Bray MD

Expert:  Chris C. replied 1 year ago.

These are the normal federal standard cutoff levels for urine testing:

Drug Test Cutoff Levels for the (EMIT) Test

Drug Nanograms per Milliliter (ng/ml)
Marijuana metabolites 50
Cocaine metabolites 150
Opiate metabolites 1 2000
Phencyclidine (PCP) 25
Amphetamines 2 500

1 Labs are permitted to initial test all specimens for 6-acetylmorphine at a 10 ng/ml cutoff
2 Target analyte must be d-methamphetamine and the test must significantly cross-react with MDMA, MDA, and MDEA

If the initial urine sample shows a positive result the verification is done at the following cutoff levels vis MS/GC:

Drug Test Cutoff Levels for the (GC/MS) Test

Drug Nanograms per Milliliter (ng/ml)
Marijuana metabolite 1 15
Cocaine metabolite 2 100

Morphine 2000
Codeine 2000
6-acetylmorphine 4 10
Phencyclidine (PCP) 25

Amphetamine 25
Methamphetamine 3 25
MDA 25

1 Delta-9-tetrahydrocannabinol-9-carboxylic acid
2 Benzoylecgonine
3 Specimen must also contain d-amphetamine at a concentration > 100 ng/ml
4 Labs test for 6-acetylmorphine when the morphine concentration exceeds 2,000 ng/ml

With these detection times (the same as you said was to be used at 2000ng/ml) the following are standard detection times in which you will show a positive result:

Codeine Tylenol w/codeine, Robitussin A-C, Empirin w/codeine, Fiorinal w/codeine Analgesic, antitussive

Detectable for 5-7 days

With 36 hours since your last ingestion of codeine you are still inside the detection window for a positive result. This does depend on your intake of fluid and an increase during the pre-test period will reduce the level. So you "should" be safe but you are well within the window in which you will show a positive result.