Doctor insights on:
Naloxone Challenge Test
Yes: on screening tests (dipstick tests and other "first use" tests) but NOT on confirmatory tests. Any positive on a screening test should lead to a more sophisticated confirmatory test (usually gas chromatography/mass spectroscopy) which will tell the difference between pseudoephedrine and amphetamine. ...Read more
It can happen: Revised reply: disregard earlier one if you saw it. At first I misunderstood the question. The newer TP specific IgG/IgM tests (EIA etc) and RPR/VDRL have similar seroconversion times, typically 4-6 weeks. The IgG tests often are positive first, but exact frequency of this isn't yet known -- more study needed. Apologies again if any confusion from earlier reply. ...Read moreSee 1 more doctor answer
This site is: meant to provide information that is helpful medically and not as a means to obtain information that will be used otherwise which is what I think you are after. There are many "five panel" drug tests and you will simply have to take your chances. ...Read more
A lot of products.: A screening drug test is not perfect. A site i would recommend for a list of over the counter medications and the associated false positives is: http://www.Askdocweb.Com/falsepositives.Html. ...Read more
Because of negative mannitol test & heavy dysnea, Dr. ordered methacholine challenge, but my dna shows pseudocholinesterase deficiency. Safe test?
Methacholine: Did you have PFTs? First do that ,Rrare to use methacholine in the US as those with asthma can have a severe response. Discuss your deficiency and PFTs wtth your doctor. methacholine is metabolized by acethycholinesterase and si resistent to inactivation by pseuodcholinesterase , so that should not be a factor. See http://www.rxlist.com/provocholine-drug/clinical-pharmacology.htm ...Read more
No: It's an interesting and often helpful herbal. Best wishes. ...Read more
Pseudoephedrine: Yes, to stimulants such as meth, & also to ecstacy. ...Read more
Easily: You pretty well imply the test is immunoassay (dipstick) they have at least a few percent of false readings. Sometimes due to known drug issues cross reacting with drugs of abuse but just as often from unknown factors. Confirmation with mass spect. would be necessary. ...Read more
No: It will not.Get a more detailed answer ›
I took .5mg of Xanax (alprazolam) 2 hours before taking a 7 panel urine drug test. Will it test positive?
Yes: yes if they test for itGet a more detailed answer ›
Echocardiogram good, blood tests good, stress test good except for reversible ischemia but test had 10% false positives should I trust the test ?
Naloxone in urine: This will depend on the testing method used. I would ask the person ordering the test this question. ...Read more
SEVERAL DAYS: Impossible to say for sure, depends on dose, your weight, absorption, etc. ...Read more
If being tested SPECIFICALLY for naloxone, meaning only naloxone and nothing else, how long would it or its metabolites be detectable on a lab test?
Half life: Thank you for clarifying. To indirectly answer your question, half life of naloxone is about 1.6 hours. Metabolism is in the liver. 75% of all original product and metabolites will be cleared by 3days and over 90% in a week. The reported sensitivity of the serum test is to less than 1%, so extrapolating about 10 days would be required. ...Read more
Not usually: Naloxone is not screened for in most tests used for that purpose, although in larger amounts it may cross-react with the test for morphine/codeine. If confirmatory testing is done (gas chromatography/mass spectroscopy and others), Naloxone can be specifically identified, if one is looking for it. Did you od and get treated with naloxone? Your doctors need to know that immediately. ...Read more
If Suboxone was taken Friday and Saturday would the naloxone still be in the urine on tuesday? (yes the clinic here test for both ingredients in subs)
Probably: Not. Why not just be honest before you take the test? It's a lot better for trust!! ...Read more
Depends on how given: If given intravenously, it works literally in seconds (10-20 seconds to start working, works fully in couple minutes); if given intramuscularly (im) it takes 2-10 minutes to kick in. If given in a nasal spray (which is being used in several communitites to help addicts and their friends treat od) it works in-between IV and im, starting in 1-2 minutes, and taking full effect by 5-10 minutes. ...Read moreSee 1 more doctor answer
Nifty Naloxone: Naloxone, or Narcan (naloxone) is intended to reverse narcotic overdose and is usually given in the vein, muscle or breathing tube (in emergencies). It has a very rapid onset of action but a short life in the body. It's half life is 64 minutes, which means in approximately 4 hours it is completely out of the body primarily through the kidneys. Diminished kidney function could prolong the drug effect. ...Read moreSee 1 more doctor answer
I have been stable taking Bup/Naloxone 8/2, 1/2 tab 3-4 x day for 8 years for pain, but insurance no longer will pay, is there any other med option?
It is possible: It is possible to be allergic to any medication. A medication has other ingredients, such as stabilizers, preservatives, pH buffers, etc..., and a person may be allergic to one of the other ingredients. Also, a person can be ok with the drug, but react to a breakdown product of the drug, or react to a "bound" combination of the drug+substance (the substance may be from the person's own body). ...Read moreSee 1 more doctor answer
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