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Doctor insights on: The Flu Rt Pcr Throat Or Nasal Swab

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Polymerase Chain Reaction (Definition)

Polymerase chain reaction is a method of finding a specific piece of dna and copying it over and over again until there is enough to study. The technique allows a scientist to detect very small amounts of dna in a swab sample then reproduce enough of it to study it. It is very sensisitive for detecting the presence of certain bacteria and is also used in doing other ...Read more


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What is the definition or description of: pertussis in nasal swab (pcr test)?

What is the definition or description of: pertussis in nasal swab (pcr test)?

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

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Can a cold or the flu cause post nasal drip and a lump in throat feeling?

Can a cold or the flu cause post nasal drip and a lump in throat feeling?

Cold/flu: Greetings. Yes, the flu can increase drainage to a thickened post nasal drainage that can create inflammation causing your "lump" sensation. ...Read more

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Why cant u answ. question. is this a cold or flu. tightnes chest, throat, headache, nasal swelling is Robitussin ok ?

Why cant u answ. question. is this a cold  or flu. tightnes chest, throat, headache, nasal swelling   is Robitussin ok   ?

Variable: A number of viral illnesses have similar-idenbtical symptoms. There are specific tests for influenza. Most respond to similar treatments for viral illnesses. Rest, clear the nasal passage, keep hydrated. and time. Robitussin helps the cough. ...Read more

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Diagnosed w/ Flu B Friday @2pm via nasal test due to minor sore throat. No symptoms since Sat. On Tamiflu since Fri. Still contagious? Flu test wrong?

Diagnosed w/ Flu B Friday @2pm via nasal test due to minor sore throat. No symptoms since Sat. On Tamiflu since Fri. Still contagious? Flu test wrong?

Likely/likely not: Most flu swab tests are more likely falsely negative than falsely positive.Patients are considered potentially contageous for a minimum of a week from first symptoms (soar throat qualifies). ...Read more

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I'm sick with flu or flu-like illness, including sore throat. Today I noticed very bloody thick post nasal drip. I don't have sinus pain. What is this?

I'm sick with flu or flu-like illness, including sore throat. Today I noticed very bloody thick post nasal drip. I don't have sinus pain. What is this?

See your doctor: that could be acute sinusitis, together with the other symptoms you have, you don't need to have sinus pain when you've got sinusitis, so better run it by your doctor, goodluck ...Read more

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i recently got nasal flu vaccine and around 20 minutes after it i got this uncomfortable feeling in my throat which feels like a lump, is this normal?

 i recently got nasal flu vaccine and around 20 minutes after it i got this uncomfortable feeling in my throat which feels like a lump, is this normal?

Symptom after fluvac: there are similar symptoms after nasal flu vaccine. Generally speaking as long as they are short-lived mild and not compromising for breathing or swallowing they tend to be not an issue. For next year I would mention this before receiving the same vaccine and have the office observe you for 30 minutes to an hour after the vaccination. ...Read more

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Got meds for flu.Feels like sumthin stuck in throat,post nasal drip,phlegm,runny nose,tight chest but shld I worry about upper dull/heavy back pain?

Got meds for flu.Feels like sumthin stuck in throat,post nasal drip,phlegm,runny nose,tight chest but shld I worry about upper dull/heavy back pain?

Rx meds ?: Have you been examined by a Dr? Hard to know over the internet, but I would want to examine you to be sure that you are not developing pneumonia, maybe order a chest x-ray. If symptoms are not improving, please contact your Dr for evaluation ...Read more

Dr. Heidi Fowler
1,882 doctors shared insights

Flu (Definition)

The flu, otherwise known as influenza, is a viral infection of the nose and throat. Symptoms of influenza include fever, chills, runny nose, muscle aches, fatigue, malaise, headaches, and coughing. Children with the flu often have nausea and vomiting as well. Some strains of the flu are preventable by getting a yearly flu ...Read more


Pcr (Definition)

Polymerase chain reaction is used in molecular biology to amplify copies of dna. It is used in dna cloning for sequencing, functional analysis of genes, identification of genetic finger prints, diagnosis of hereditary ...Read more