Doctor insights on:
Nasal Swab Test
How accurate are nasal swab flu tests? My sister had one yesterday @ our Dr 's ofc, but it was neg for flu. She has fever, chills, is very achy, etc.
Accurate if positive: If a nasal swab flu test is positive, it is a very reliable result. The swab is nasopharyngeal, meaning the swab goes to the back of the nose to get a mucus sample. If it is negative, it is only somewhat reliable, which means a person with a negative result may still have influenza. A rough estimate is that 1 out of 4 people with cold or flu symptoms, who test negative, actually do have influenza. ...Read more
Pertussis was foun: It means that they found evidence that the bacteria that causes whooping cough was present in the nasal passages. This could mean you are a carrier of the disease (could infect others) or if you are having symptoms or repeated, serious cough, then you likely got infected by the pertussis bacteria and have whooping cough. ...Read more
I had nasal swab at doc today it showed A and B influenza. I went cause I had sinus pressure but no other symptoms..could test be wrong? I feel fine
Unlikely: Most cold symptoms now can be attributed to the flu although symptoms may vary from one to another. There is nothing 100% in medicine however but it is unlikely that the test result was wrong during this epidemic. In fact, testing is not recommended. ...Read more
Germs you carry: The nasal membranes are a luxurious environment for germs to grow and end up on your fingers where they are spread to the environment.Screening nasal swabs is one way to find a source for staph or other germ that may not infect the carrier but might cause problems with the rest of their family. ...Read more
Rapid Influenza test:
A nasal swab can be used to test for Influenza A. The rapid tests in the office can be helpful to diagnose Influenza. There are different brands of tests with varying sensitivities. See the site below for additional information
http://www.cdc.gov/flu/professionals/diagnosis/rapidlab.htm ...Read more
Rapid screening test: Dfa--direct fluorescent antibody test--a rapid diagnostic test done in the lab that takes 1-2 days to screen for pertussis (whooping cough). While much faster than a culture, this test is not as reliable. A nasal swab is inserted gently into the nostrils toward the throat (posterior nasopharynx). Then fluorescently labeled antibodies are exposed to the sample looking for pertussis antigens/markers. ...Read more
Nothing special: The presence of staph on a nasal swab means only that you are carrying a strain in the lush mucoid environment where it can thrive. It doesn't do well on the dry skin surface for long periods of time. With it in your nose you could spread it to bug bits by scratching with contaminated fingers, or to door handles or other objects. Since most have no symptoms, nasal carriage allows it to spread. ...Read more
If mrsa swab of infected area is negative after infection, is mrsa gone? Does an infection mean I am a carrier? Do I need to follow up w/ nasal swab?
MRSA carriage : There is s lot of media attention and literature on MRSA in recent yrs. resulting in some confusion. If you had MRSA diagnosed before, thud chances are that you are colonized with it. Thx good news is that you can decrease colonization with proper monitoring and treatment as indicated. ...Read more
If a person has a nasal swab done & it cultures positive for "staph lugdunenis" but has no apparent signs of infection/illness what should be done?
Nasal Swab: The three most common bacterial pathogens causing upper respiratory infection in adults are Moraxella catarrhalis, Streptococcus pneumoniae, and Haemophilus influenzae. A nasal swab is performed to culture and see what pathogen is causing problems. Haemophilus is a normal colonizer, but when isolated from sputum during infection it can indicate colonization has morphed to pathogenicity. ...Read more
Swollen turbinates for last 6 months. Dx vasomotor Rhinitis. Positive nasal swab for Coag Negative staph. Could this be cause of Vasomotor Rhinitis?
Definitely not: A culture like that is essentially useless. Staph CN organisms in this setting are 'just along for the ride' and have nothing to do with your sinus disease. That might have been different if a true pathogen was found (like Strep) but I'm pretty sure this is just what we call 'normal flora'. The sinuses are not a sterile place, so there are ordinary bacteria there. I would seek more about ALLERGY. ...Read more
I was recently diagnosed with mrsa via groin swab. Took bactrim, (sulfamethoxazole and trimethoprim) no visible rash. Do I need to be retested and have nasal swab? Am I a carrier now?
CONFUSING QUESTION: It is not clear why you had a swab done in your groin.If you had pustules or weepy lesions, mrsa is a reasonable cause. Once treated, you are unlikely to be a chronic carrier of the same germ.Retesting is not routine.Mrsa is so common now you could easily acquire a new strain within days or weeks. ...Read more
Swollen nasal passages for three months.Nasal swab found large amount of coagulase negative staph. Doctor wants me to take keflex. I was on keflex for 5 years low dose to treat e-coli UTI which is now resistant to keflex.Wont staph be resistant to?
No: A person doesn't get resistent to an antibiotic, but a germ can. If you have not been on keflex in the past months it would likely kill off some of the germs on your body.However; I find coag negative staph to be a normal skin contaminant and not worthy of any treatment.Use of a simple OTC nasal steroid spray like rhinocort would help with most causes of nasal membrane swelling. ...Read more
I am experiencing nasal congestion (stuffiness) and throat swelling above my adams apple left side, throat swab test came back negative. ?
Well: Could be all viral which means symptomatic treatment. Now if your symptoms persist or worse. Go back to the doctor ...Read more
My cousin took the whooping cough test through a nose swab, how long does it take to get results?
Depends: There are different answers to this question based on how the test was done but, in general, it will take 7-14 days for the full results but you can get a 'preliminary' result in ~7-10. ...Read more
Flu test few days ago with swab inside my nose. Nose still feels sensitive. Could that swab cause an infection in my nose or am I worrying too much?
Possible: Probably just sill irritated, however a safe thing to do would be to get a bacitracin or polysporin cream and place in the nostril 2 or 3 times per day. The ointment will protect the area and help the irritation to heal if you do have an infection it would be the best first thing to do! Hope that helps! ...Read more
Biopsy/histopath.: The diagnosis of this cancer is often made by lymph node biopsy, since the nasopharyngeal cancer ofthen presents with lymph node involvement. Otherwise, the patient will typically undergo a needle biopsy of this lesion, and when histopathologic information is available, a multidisciplinary discussion of the optimal treatment strategy will be undertaken. ...Read more
The test itself can be done in one day. However, most hospitals need to send the sample to a reference lab and due to low volume the lab may not run the test every day.
Wish you good health. ...Read more
Biopsy/histoath.: The diagnosis of this cancer is often made by lymph node biopsy, since the nasopharyngeal cancer ofthen presents with lymph node involvement. Otherwise, the patient will typically undergo a needle biopsy of this lesion, and when histopathologic information is available, a multidisciplinary discussion of the optimal treatment strategy will be undertaken. ...Read more
Less than an mL: It only needs a drop of fluid to do the test. No more than one mL would be needed. ...Read more
PLEASE help; Beta Trace Protein negative but my nasal secretions glucose positive on dip tests. How reliable is Beta Trace protein test?Thank you!!
Beta transferrin in nasal fluid is the better marker to detect leakage of CSF into the nose. If it is negative your doctor may need to re-evaluate.Wish you good health! - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex.
Get HPV vaccine ...Read more
Tonsil out,biopsy,abundant Actinomyces colonies,still have post drip nasal, can this be caused by Actinomyces?What kind of test is there to find out?
It's not: Actinomyces colonies are fairly common in tonsils whether or not they need to come out. Actinomyces is usually harmless but when it gets deep into tissues, it evokes abundant pus. It's not going to cause the edema and mild inflammatory of the upper respiratory tract that produces the drip. ...Read more