Doctor insights on:
Diabetes False Positive
I tested positive for benzoylecgonine and have not used cocaine. How would diabetes cause false positive?
See below : I don't think it would.Get a more detailed answer ›
False positive?: What are you looking for? No diabetic medicines will not cause a false positive ...Read more
Not likely : The general answer is no but you'll need to be more specific about your tests of interest. ...Read more
Can CMV virus and type 2 diabetes together make the HIV western blot and PCR viral load tests false positive for hiv?
Yes: A false positive is possible. A test done by a reputable lab is far better than the otc options! false positives can happen even if your health status is perfect! ...Read more
Depends: All testing derives information within statistical norms. This means that sometimes a test might show a positive result when in fact it was not. The chances vary with what you are looking for and the reliability of the laboratory. Confirmatory tests may be needed. ...Read more
No such thing: If the alt is elevated, something's caused the enzyme to leak from your liver and/or skeletal muscles. Today's assays are reliable. But this does not necessarily means you are sick. It can be from the ultramarathon you just ran, or the Ibuprofen you took for the cold you're now better from. Your physician knows how to follow this up -- often just a repeat draw will lay concerns to rest. ...Read more
Thc urine mimics: Hemp seed oil, kidney disease, diabetes, liver disease and riboflavin, or b2, can be capable of causing a false positive result on a drug screen for marijuana. Documentation of the disease, or the pill bottle should be brought along to show to the laboratory staff during any drug testing. Marinol, nsaid's, protonix, (pantoprazole) can also cause false positives. ...Read more
False pregnancy test: Home pregnancy tests are generally speaking quite reliable and accurate. And they are the same test that are used by physicians in an office-based test. False positive test results are exceedingly rare. If you got such a result the best thing to do is either to repeat it or to see a physician and explain what happened. Your doctor may then order a blood test for pregnancy. ...Read more
Repeat: pregnancy test with a first morning void. ...Read more
Possible : But if you've had exposure and/or symptoms, then its not a false positive. You can repeat the test, but most would agree treatment with antibiotics is the next step. ...Read more
Lyme disease and...:
False positives for this test are extremely common. See http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6005a1.htm
There are many possible causes- see http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2095002/table/T4/ for a list.
I would be particularly concerned about Lyme disease causing a false positive and advise a Western Blot from IgeneX lab. See http://betterhealthguy.com/lyme/testing ...Read more
Minimal: Minimal. But only you know for sure. The testing is very accurate. ...Read more
Great question: I think dilute urine is the most likely source for false negatives. I am not familiar with other substances outside of the cannabinoid class of compounds (some of the newer synthetics?) that will react with standard immunoassays. If one is concerned, however, about a false positive there is confirmatory testing that can determine for sure whether it was a false positive or not. ...Read more
As far as I know,: the only food that can cause positive results in urine (and other) drug testing is poppy seeds. This is actually not a false positive, because poppy seeds do contain very tiny amounts of a chemical related to morphine, papaverine, which is metabolized into morphine. I am not aware of any other food that can do this. They are found in pastries, bagels and other baked goods. ...Read more
Blood was mixed up. But more likely to show negative.
Someone bribed the person doing the test. ...Read more
Yes: Yes...false positive can occur with prolonged fasting. If you fast for >24 hours then the gallbladder may already be filled and fail to fill with the radiotracer. ...Read more
Yes: If you are refering to urine tests that look for metabolites, it is possible but not likely. Could be excessive use of alcohol based hand sanitizers. One case i'm aware of is using vanilla extract in alcohol base put in coffee, though using it in cooking should get rid of alcohol. Possible using alcohol based mouthwash, should be avoided any way in someone with history of alcoholism. Nyquil. ...Read more