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Doctor insights on: Test Microbiology

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Positive HIV screener test at blood donation... Negative IFA and Negative NAT... False positive?

Positive HIV screener test at blood donation... Negative IFA and Negative NAT... False positive?

Yes: The initial screening test for HIV is very sensitive, but not very specific. The back up screening tests are much more specific for HIV. ...Read more

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What is medical microbiology?

What is medical microbiology?

Diagnose infection: Medical microbiology is the study of living organisms that can infect the body. This includes viruses (technically not alive, but infectious), bacteria, fungus, parasites. These subfields are called virology, bacteriology, mycology, and parasitology. It is a vast subject and encompasses a wide variety of organisms ranging from tiny submicroscopic viruses to relatively large parasites tapeworms. ...Read more

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Pathology lab test for thalassemia?

Pathology lab test for thalassemia?

Electrophoresis: Blood counts can suggest thalassemia (small red blood cells). Some thalassemia can be confirmed with electrophoresis, which quantifies the different types of hemoglobin present in rbcs. Similar studies can be done on the parents for additional info. ...Read more

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4 hsv-2 type-specific IgG tests.1 partner for all. 1st=negative. 2nd test @7mo.=positive 3.3igg. 3rd test @11mo=negative. 4th test@21mo. = negative?

4 hsv-2 type-specific IgG tests.1 partner for all. 1st=negative. 2nd test @7mo.=positive 3.3igg. 3rd test @11mo=negative. 4th test@21mo. = negative?

Lab Error: I would chalk this up to lab error, but in my patients we do not leave it there. There is a much better and more valid test to be done called a western blot test for herpes. This definitive test should have already been offered to you so that you can know for a fact whether you have herpes or not. ...Read more

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Does cbc, urinalysis, serology, and bacteriology be enough to test HIV infection?

ELISA HIV serum test: Is extremely reliable and should be only test required. Urinealysis and bacteriology will add nothing. Good luck. ...Read more

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Erosive gastritis. h.pylori blood test positive, breath test positive, stool antigen test negative, biopsy negative. what to do ?

Erosive gastritis. h.pylori blood test positive, breath test positive, stool antigen test negative, biopsy negative.  what to do ?

Treat it: The positive H. pylori antibody test is not a reliable indicator of current infection. The gold standard for H. pylori treatment is the gastric biopsy, and this is negative in this patient. However, I am impressed by the positive breath test and erosive gastritis. I would have expected stool antigen to be positive, as it mirrors the breath test. Given the discrepant results, treat the patient. ...Read more

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Do microbiologists test for cancer?

Do microbiologists test for cancer?

No, they don't: Microbiologist is a person who investigates the growth and characteristics of microscopic organisms such as bacteria, algae, or fungi. That has nothing to do with cancer. ...Read more

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Mantoux test positive?

Mantoux test positive?

Work up needed: At the very least it may suggest that you have been exposed to tuberculosis. You should visit with your doctor to have questions asked about whether or not you have TB symptoms to suggest infection such as do you have a cough? Unexplained night sweats? Unexplained weight loss, fevers or chills and fatigue? You also need to have a chest x ray performed - since organism is usually inhaled. ...Read more

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Tb skin test negative, quentform TB test negative, bone marrow biopsy results indicative of TB (reacts to ziehl niehlssen), PCR negative. How come?

Tb skin test negative, quentform TB test negative, bone marrow biopsy results indicative of TB (reacts to ziehl niehlssen), PCR negative. How come?

No...actually: The zn stain is a broad stain for acid fast bacilli of which mycobacterium tuberculosis is one of many. The specific tests like quantiferon or the pcr test are against you having tb. The culture is the "gold standard" but you will need to wait for it. It might turn out be a cousin of TB and that too will grow out of culture. Stay on TB meds until they are certain of the AFB positive organism. ...Read more

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Is a four week negative HIV antibody test / negative PCR test reliable?

Is a four week negative HIV antibody test / negative PCR test reliable?

HIV diagnosis: Antibody titers have been reported to be delayed as long as six months, but this is very unusual. A negative pcr for viral RNA is virtually determinative of the absence of infection. ...Read more

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Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?

Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?

HIV testing: Yes. Viral testing can be qualitative or quantitative. Most HIV RNA testing is quantitative. ...Read more

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Positive leukocytes from home UTI test. 1st urinalysis positive also. Anti biotics didn't work. 2nd urinalysis negative. What's wrong?

Positive leukocytes from home UTI test. 1st urinalysis positive also. Anti biotics didn't work. 2nd urinalysis negative. What's wrong?

Need urine cultures: If you are having symptoms consistent with a urinary infection and the urine analysis is abnormal then you need urine cultures to direct you towards the right antibiotic ...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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Ana screen, ifa positive a (negative) means?

Ana screen, ifa positive a  (negative)   means?

Nothing by itself: One person in four tests positive. The vast majority of these people have no problems. The clinical picture is key, and how high the titer is may be helpful. ...Read more

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What does a high positive ANA ifa test and negative choice antibody test mean?

See details: I have never heard of a choice antibody test. I positive ANA must be evaluated in the context of the clinical picture. It is a screening test for lupus but can be positive in numerous other diseases and often in people without any disease. ...Read more

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Please interpret- C.trachomatis RNA TMA Result: Detected. Standard range: Not detected. Test performed using the Aptima Combo2 (R) assay gen-probe(r)

Please interpret-
C.trachomatis RNA TMA Result: Detected. Standard range: Not detected. Test performed using the Aptima Combo2 (R) assay gen-probe(r)

You have chlamydia: "Detected" means the test found chlamydia -- i.e. a positive result. Return to the doctor or clinic where the test was done for treatment. (If you tested yourself at a lab, see a doctor or clinic ASAP.) Your current or recent sex partner(s) also need treatment. Good luck! ...Read more

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blood test IGG 17.95 positive and IGM 8.50 negative. stool test was negative. do I infect with h.pylori?

 blood test IGG 17.95 positive and IGM 8.50 negative. stool test was negative. do I infect with h.pylori?

Past infection: These results suggest past infection with H. pylori. The blood test can remain positive for years after past infection even if you were treated. The stool test and urea breath test can better detect current infection. The gold standard for testing is a biopsy during endoscopy. https://www.nlm.nih.gov/medlineplus/ency/article/007501.htm ...Read more

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How do you test your carpet to see if it emits toxic fumes?

How do you test your carpet to see if it emits toxic fumes?

Carpet Toxins: Contact the environmental health center - dallas for a full evaluation of your home and its contents. They have many ways of testing for numerous environmental toxins. ...Read more

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I have a smear test thursday no period for 14 months been bleeding after intercourse and it's so painful now watery discharge and abdominal pain?

I have a smear test thursday  no period for 14 months been bleeding after intercourse and it's so painful now watery discharge and abdominal pain?

Needs evaluation: Bleeding with pain and discharge is of some concern for an infection, which would require evaluation, culture tests, and treatment with antibiotics. Please discuss this with your doctor soon. ...Read more

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It yust to take 7 days to get microbiology lab results. Now it takes only 2 days waiting for it. Why is that so?

Depends: It is important to know what microbiology results you are talking about. Bugs take their time to grow and they like sometimes to take it slow. However, knew molecular tests are available and results can be reported faster. ...Read more

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What's does microbiology occasional squamous cell in appendicites pathology means?

What's does microbiology occasional squamous cell in appendicites pathology means?

Likely nothing: Your question is a little unclear, but it sounds the micro report said there were squamous cells present. Was this from a blood draw or directly from the appendix? Cultures aren't usually done directly from the appendix. These aren't a normal part of the appendix and likely indicate contamination from another site--most likely skin from the blood draw site if that was the case. ...Read more

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2 weeks of reduced/very soft and foamy BMs. Farigue low appetite.Doc suspects infection/inflammation. Bloods ok faecal sample neg 4 microbiology.CA?

2  weeks of reduced/very soft and foamy BMs. Farigue low appetite.Doc suspects infection/inflammation. Bloods ok faecal sample neg 4 microbiology.CA?

Not likely: Chance of cancer is low. But you need to see surgeon or GI doc for good work up possibly to include colonoscopy. This could be many things. History and exam from doc, with appropriate work up can give answers and target proper treatment! Live healthy and be well! ...Read more

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Culture, urine final report microbiology results 50, 000-75, 000 col/ml mixed gram positive flora is this normal or a uti?

Culture, urine 
final report microbiology results
50, 000-75, 000 col/ml mixed gram positive flora

is this normal or a uti?

Contamination: If this is a final report, this most likely represents a contaminated specimen collected by " clean catch". If you are having UTI symptoms, it may be necessary to collect a specimen by straight catheter. ...Read more

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What is the value of studying microbiology in environmental health?

What is the value of studying microbiology in environmental health?

Cause of disease and: death. Microbes are an important cause of disease and death and are part of the environment. Influenza pandemics killed more people than world wars. Tuberculosis is part of the environment and a major cause of death in HIV patients. And more. ...Read more

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What is medical microbiology?

Diagnose infection: Medical microbiology is the study of living organisms that can infect the body. This includes viruses (technically not alive, but infectious), bacteria, fungus, parasites. These subfields are called virology, bacteriology, mycology, and parasitology. It is a vast subject and encompasses a wide variety of organisms ranging from tiny submicroscopic viruses to relatively large parasites tapeworms. ...Read more

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Which areas in microbiology/ pathology related occupations are in demand and where?

Which areas in microbiology/ pathology related occupations are in demand and where?

Interesting question: Medical technologists are always in demand and usually duties include serving in different areas of clinical laboratory. If you are qualified you may be assigned to microbiology part of the lab, but this requires training and experience in this specific area. In the modern era microbiology is utilizing a lot of molecular techniques in everyday testing, so expertise in this area might be a plus. ...Read more

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Can you tell me how are catheters handle (for culture) in the microbiology laboratory?

Can you tell me how are catheters handle (for culture) in the microbiology laboratory?

Culture techniques: An indwelling catheter suspected of harboring an infectious organism is thoroughly exposed to the culture media that will support growth of the bug, often by rolling it over the surface. It may also be immersed in a liquid media to detect organisms not on the surface, or that have "fastidious" growth requirements. ...Read more

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It yust to take 7 days to get microbiology lab results. Now it takes only 2 days waiting for it. Why is that so?

Depends: It is important to know what microbiology results you are talking about. Bugs take their time to grow and they like sometimes to take it slow. However, knew molecular tests are available and results can be reported faster. ...Read more

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What's does microbiology occasional squamous cell in appendicites pathology means?

Likely nothing: Your question is a little unclear, but it sounds the micro report said there were squamous cells present. Was this from a blood draw or directly from the appendix? Cultures aren't usually done directly from the appendix. These aren't a normal part of the appendix and likely indicate contamination from another site--most likely skin from the blood draw site if that was the case. ...Read more

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Culture, urine final report microbiology results 50, 000-75, 000 col/ml mixed gram positive flora is this normal or a uti?

Contamination: If this is a final report, this most likely represents a contaminated specimen collected by " clean catch". If you are having UTI symptoms, it may be necessary to collect a specimen by straight catheter. ...Read more

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3 wks v reduced, incomplete, loose BM wit r abdo discomfort, poor appetute, super fatigue. Bloods and faecal sample for microbiology fine.++fatigue?

3 wks v reduced, incomplete, loose BM wit r abdo discomfort, poor appetute, super fatigue. Bloods and faecal sample for microbiology fine.++fatigue?

Diarrhea: Ar you still on mebendazole? as your symptoms could be from that. Do you have any worms? With 3 weeks of diarrhea make sure you are not dehyrated , Drink about 3 liters of fluid a day. Check potassium , magnesium, calcium levels, thyroid, glucose , white and red cell count.. Follow up soon with a doctor. ...Read more

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My doctor ordered a semen culture to send to microbiology. What does that look for? I saw the urologist for a slightly inflamed prostate.

My doctor ordered a semen culture to send to microbiology. What does that look for? I saw the urologist for a slightly inflamed prostate.

Bacteria in: prostate take a long time to be treated. They can be STD but are more likely just the bowel bacteria that cause UTI's. They take a month of treatment to get them out of the prostate though. ...Read more