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Doctor insights on: Rapid Strep Test

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Can swab test culture test done to check for strep throat be false -ve?

Can swab test culture test done to check for strep throat be false -ve?

Strep throat: A rapid strep test could be false negative. A culture, if the specimen is obtained properly, should not have a false neg. ...Read more

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Is it common to test positive for strep a on rapid strep and a month later test positive for strep c on throat culture?

Is it common to test positive for strep a on rapid strep and a month later test positive for strep c on throat culture?

Not unusual: Group C strep is frequently found on throat culture and is part of the normal flora that reside in the throat. As such, it's role as the causative agent in any given case of pharyngitis is often uncertain. There is no evidence Group C strep causes Acute Rheumatic Fever. *If it is cultured in an asymptomatic individual there is no necessity to treat it unless it's suspected as the cause. ...Read more

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Are there any over-the-counter rapid strep throat tests?

Are there any over-the-counter rapid strep throat tests?

No: An office or facility must have a lab certification through the feds to use this diagnostic tool.At the least it requires a physician/lab director licensed in the state and be subject to inspection and regular registration updates. ...Read more

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What's the accuracy of negative rapid hiv test and duo test after 10 weeks?

What's the accuracy of negative rapid hiv test and duo test after 10 weeks?

Nucleic acid test: Negative duo test at 10 weeks is good but not fool proof. It would be better to get a HIV nucleic acid test. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex. Get HPV vaccine. ...Read more

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Should i get an ELISA or western blot test if my hiv1&2 rapid tests come out negative? Hiv rapid is reliable?

Should i get an ELISA or western blot test if my hiv1&2 rapid tests come out negative? Hiv rapid is reliable?

PCR: The reason i would urge you to get the pricey pcr is that is is clear that you are worried, and it is costing you emotional energy. Pcr is the gold standard and will give you the right answer before either of the others. I hope things turn out well, but having HIV is no longer a death sentence. Good luck, live and love responsibly, and keep taking a proactive approach to your health. ...Read more

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I tested positive/treated for strep 5x (rsat), little/no symptoms. Last test was positive, culture was negative. What causes false positive results?

I tested positive/treated for strep 5x (rsat), little/no symptoms. Last test was positive, culture was negative. What causes false positive results?

Latent infection?: Some people have recurrent MRSA (multiply-resistant strep aureus) infections that are treated successfully and recur. There is a possibility that they (or you) could be harboring strep in your nose. The sinuses don't have great blood flow, and so may potentially "hide" bacteria. This could explain your odd results. Put bactroban (mupirocin) up your nose daily as a preventive measure, and see what happens. ...Read more

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Can negative test results be trusted for a prostitute with HIV antibody rapid test and HIV duo test?

Can negative test results be trusted for a prostitute with HIV antibody rapid test and HIV duo test?

Not necessarily: If the person just acquired the infection, she or he may be carrying the virus that will not be detected by either antibody or antigen tests. Testing for viral nucleic acid is the earliest way to detect HIV infection. ...Read more

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Is the Oraquick gum swab, at home rapid test, for HIV reliable/accurate?

Very accurate: This text is extremely accurate. However, of all available HIV antibody test, it takes the longest to be conclusive, 3 months after the last possible HIV exposure. All other tests are done on blood and are conclusive after 4-8 weeks. ...Read more

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Could gonorrhea/chlamydia be mistaken for strep, even if the strep throat test was positive?

Could gonorrhea/chlamydia be mistaken for strep, even if the strep throat test was positive?

Confusing question: I suppose the question is about missing a throat infection with gonorrhea or chlamydia. The positive strep test does indicate that strep is present. If you did not tell the doc you might have been exposed to these germs through oral contact, the specialized testing would not have been done to see if they were also present. The simple strep test does not look for the additional agents. ...Read more

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Aches 1year. 3hiv rapid test oraquick, unigold, clearview all negative after 6 months. 1st md said no more test. 2nd md said PCR test. More HIV test?

Aches 1year. 3hiv rapid test oraquick, unigold, clearview all negative after 6 months. 1st md said no more test. 2nd md said PCR test. More HIV test?

HIV is Hard to Get: You do not have hiv. Why in the heck would you keep testing? Why would you worry like you are. Aches can be signs of a million problems, not hiv. Aches are not in any way diagnostic for HIV infection. ...Read more

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Are rapid hiv test effective ?

Are rapid hiv test effective ?

Yes, but...: ...enough time must have passed since the last possible exposure. The laboratory blood tests all are conclusive within 6-8 weeks, and the 4th generation ("duo", "combo") tests at 4 weeks. The oral fluids home test takes longest of all, up to 3 months to be conclusive. So if you are concerned about a recent exposure, best to go to a doctor's office for proper counseling and testing. ...Read more

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Negative herpes culture and blood tests; pretty accurate?

Negative herpes culture and blood tests; pretty accurate?

Likely OK.: I don't know what your history is but if you had/have a herpes infection, you likely would have noticed skin lesions that could be irritating at some point in time. Many times there can be no symptoms but if you have this there would be some kind of outbreak at some point in time. The tests include tzank prep. Of scrapings that show giant cells, cultures are pos. In 48-96 h, elisa+pcr are great. ...Read more

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Can Alcohol lead to false Negative Hiv tests when tested using Rapid -3rd generation testing Method?

Can Alcohol lead to false Negative Hiv tests when tested using Rapid -3rd generation testing Method?

No: It should not. But the fact that you asks should tell you that you should abandon unprotected sex with new partners now that Ebola has also entered the picture. ...Read more

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How accurate are rapid HIV tests?

How accurate are rapid HIV tests?

Very accurate: But this depends upon when you were infected and whether you used the tests correctly. The best thing to do is protect yourself and stay safe. ...Read more

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