Question 1

what is the definition or description of: influenza on rt pcr test?

Accepted Answer

Detection test: Rt-pcr is reverse transcriptase polymerase chain reaction; it is a way to amplify and detect the presence of certain sequences of rna, in this case, the ones particular to influenza.

Question 2

i'm fully vaccinated (sinovac), i tested positive in rt pcr test then after 10days i tested negative in rt pcr then after a week tested positive again in rt pcr. is this normal? any suggestions what to do?

Accepted Answer

: Why did you get tested again?  PCR tests can detect viral particles for weeks after Covid infection but these particles are most likely not infectious. If you have no active covid type infection symptoms at this time, you should have no worries..

Question 3

yesterday i tested positive for covid-19 on a rapid test. today i went to get a pcr test and ended up testing negative on it. after testing negative on the pcr, i performed another rapid test and it came back positive. what does this mean?

Accepted Answer

: PCR is more accurate

Question 4

if i was exposed to omicron thursday, if i take a pcr test sunday morning, is there a good chance it will tell me if i am infected?

Accepted Answer

: The average incubation period (time from exposure to disease onset with symptoms) is around 3-5 days and the antigen test can be positive at the last day of incubation period so the test can be positive on Sunday if you are infected. However, false negative rate is relatively high which depends what antigen test you have. Some tests have as high as 30-40% false negative result, unfortunately.

Question 5

i have been asked to do a tb pcr test. is it painful and how exactly is the procedure. please explain in detail about procedure and about pain?

Accepted Answer

Not painful: Tb pcr is nothing more than a blood test to check for TB as apposed to the skin test for the same reason. Pcr stands for polymerase chain reaction which is done in the lab to check for acid fast bacilli that cause tb.

Question 6

exposure: feb 16 with someone confirmed covid 19. 
first pcr test: feb 17- negative
first rapid test: feb 20-negative

should i get pcr test again? in self isolation right now?

Accepted Answer

Testing COVID: Self isolation is best plan unless your develop symptoms but check with local tracking guidelines. Mask and practice Death Defying Distancing until then as long as your guidelines suggest. Goto uotodate.com and CDC.gov and read more.  Stay Safe.

Question 7

its been 2 weeks since i first tested positive for covid19. symtoms have passed, but i keep getting a positive pcr test result. when can i expect to get a negative result( i need it for travel) and does this positive result indicate my health is bad?

Accepted Answer

: PCR test can remain positive for months due to dead virus in the nasal passages. The positive does not mean that you have illness nor that you are contagious. If an antigen test is acceptable for clearance for travel, you should try to get that.
Visit this site for more info: https://www.cdc.gov/coronavirus/2019-ncov/travelers/testing-international-air-travelers.html
Wish you good health.

Question 8

what is a pcr test?

Accepted Answer

PCR test: There are several answers but the most universal is the polymerase chain reaction test used to multiply dna sampling to determine pathogens and also for use in legal specimen procedures. It can also  be used for human genetic testing for disease incidence and susceptibility.

Question 9

what exactly a polymerase chain reaction is or a "pcr test?

Accepted Answer

Nucleic acid testing: Pcr allows enormous expansion of a chosen, limited segment of dna and facilitate testing of nucelic acid abnormalties.  Pcr by itself is not a test.  The specificity of the test is detemined by the composition of the probes used to analyse the nucelic acids.

Question 10

by explaining what exactly a polymerase chain reaction is or a "pcr test?

Accepted Answer

DNA amplification: Poymerase chanin reaction/pcr is a process to amplify a specific stretch of dna.  Pcr is a way to perform a number of tests by using specific probes.  Pcr by itself is not a test, but one step in many tests.

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Doctor answers about:

Influenza on rt pcr test

A member asked:

What is the definition or description of: influenza on rt pcr test?

A member asked:

I'm fully vaccinated (sinovac), i tested positive in rt pcr test then after 10days i tested negative in rt pcr then after a week tested positive again in rt pcr. is this normal? any suggestions what to do?

A member asked:

Yesterday i tested positive for covid-19 on a rapid test. today i went to get a pcr test and ended up testing negative on it. after testing negative on the pcr, i performed another rapid test and it came back positive. what does this mean?

A member asked:

If i was exposed to omicron thursday, if i take a pcr test sunday morning, is there a good chance it will tell me if i am infected?

A member asked:

I have been asked to do a tb pcr test. is it painful and how exactly is the procedure. please explain in detail about procedure and about pain?

A member asked:

Exposure: feb 16 with someone confirmed covid 19. first pcr test: feb 17- negative first rapid test: feb 20-negative should i get pcr test again? in self isolation right now?

A member asked:

Its been 2 weeks since i first tested positive for covid19. symtoms have passed, but i keep getting a positive pcr test result. when can i expect to get a negative result( i need it for travel) and does this positive result indicate my health is bad?

A member asked:

What is a pcr test?

A member asked:

What exactly a polymerase chain reaction is or a "pcr test?

A member asked:

By explaining what exactly a polymerase chain reaction is or a "pcr test?

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