Sign-in to Ask A Doctor - 24x7
OR
Sign in with Google
Tested Negative For DNA PCR And Antibody Elisa Test. How Accurate Is It?
Brief Answer:
it would be accurate
Detailed Answer:
HI, thanks for using healthcare magic
Different HIV tests have different window periods. The window period is the time it takes for a test to be able to definitively detect ,with minimal error, whether a disease is present.
The DNA PCR test looks for the HIV virus itself.In this way it differs from the ELISA test which looks for antibodies in the blood, these are formed when the body reacts to the virus and may take a long time to form in some persons.
Because the DNA PCR test looks for the virus itself and not the reaction to it, the window period is only 2 to 3 weeks (14 to 21 days).
This means that if this test is done after this time , it can determine conclusively whether a person has HIV or not.
If your DNA PCR test was negative after 30 days that means that you definitely do NOT have HIV.
With the ELISA, the window period is 3 to 6 months.
I hope this help, feel free to ask any other questions
it would be accurate
Detailed Answer:
HI, thanks for using healthcare magic
Different HIV tests have different window periods. The window period is the time it takes for a test to be able to definitively detect ,with minimal error, whether a disease is present.
The DNA PCR test looks for the HIV virus itself.In this way it differs from the ELISA test which looks for antibodies in the blood, these are formed when the body reacts to the virus and may take a long time to form in some persons.
Because the DNA PCR test looks for the virus itself and not the reaction to it, the window period is only 2 to 3 weeks (14 to 21 days).
This means that if this test is done after this time , it can determine conclusively whether a person has HIV or not.
If your DNA PCR test was negative after 30 days that means that you definitely do NOT have HIV.
With the ELISA, the window period is 3 to 6 months.
I hope this help, feel free to ask any other questions
Above answer was peer-reviewed by :
Dr. Chakravarthy Mazumdar
Hello, Thank you to take the time to answer my questions so fully. I would like to ask a few more questions pls. I've a white coating on the top of my tongue for over a month which doesn't hurt when I eat, drink or speak. In addition I've been getting a mild sore throat that comes and goes. I read online how a sore throat and white coating could be an HIV/STDs signs.
So at about 5 weeks and 4 days of my last protected exposure I took a full STD with HIV antibody tests which all came back negative except for herpes 1. I was wondering what the causes of these two symptoms?
My herpes to test was <0.90 and negative. Does <0.90 mean that I'm on the borderline that I may be positive in the future?
Thank you in advance for your help!
So at about 5 weeks and 4 days of my last protected exposure I took a full STD with HIV antibody tests which all came back negative except for herpes 1. I was wondering what the causes of these two symptoms?
My herpes to test was <0.90 and negative. Does <0.90 mean that I'm on the borderline that I may be positive in the future?
Thank you in advance for your help!
Brief Answer:
NOT due to HIV based on tests
Detailed Answer:
Hi
White coating of the tongue is usually related to oral candidiasis ( oral yeast infection).
It occurs in any situation where the immune system is impaired in any way or if there is increased presence of this organism in the mouth. HIV is only one of the conditions is which this is found because of the immune impairment associated with HIV.
It can also occur in other cases: (1) diabetes (2) use of any immunosuppressant medication such as steroids , meds used in immune disease
(3)smokers and person with high carbohydrate intake- due to increased presence of the organism
(4)history of recent antibiotics
(5)dentures
(6)cancer
The test that you had done rules out HIV as the cause, so your doctor would determine if there are any likely causes such as those listed above.
Intermittent sore throat can be related to: (1) allergic sinusitis and post nasal drip
(2)viral infection like the common cold
(3)bacterial sore throat such as strep
(4)GERD- in severe case this can also cause reflux
(5)rarely oral candidiasis can spread to involve the throat, this can be identified by an ENT doctor
The herpes test result indicates that there is no current infection with herpes. It is not saying that you are borderline, it means that you are negative, not infected.
Please feel free to ask anything else
NOT due to HIV based on tests
Detailed Answer:
Hi
White coating of the tongue is usually related to oral candidiasis ( oral yeast infection).
It occurs in any situation where the immune system is impaired in any way or if there is increased presence of this organism in the mouth. HIV is only one of the conditions is which this is found because of the immune impairment associated with HIV.
It can also occur in other cases: (1) diabetes (2) use of any immunosuppressant medication such as steroids , meds used in immune disease
(3)smokers and person with high carbohydrate intake- due to increased presence of the organism
(4)history of recent antibiotics
(5)dentures
(6)cancer
The test that you had done rules out HIV as the cause, so your doctor would determine if there are any likely causes such as those listed above.
Intermittent sore throat can be related to: (1) allergic sinusitis and post nasal drip
(2)viral infection like the common cold
(3)bacterial sore throat such as strep
(4)GERD- in severe case this can also cause reflux
(5)rarely oral candidiasis can spread to involve the throat, this can be identified by an ENT doctor
The herpes test result indicates that there is no current infection with herpes. It is not saying that you are borderline, it means that you are negative, not infected.
Please feel free to ask anything else
Note: Get personalized answers to your HIV related queries You can choose to talk face to face with your doctor. Book a Video Call now.
Above answer was peer-reviewed by :
Dr. Chakravarthy Mazumdar
Answered by
Get personalised answers from verified doctor in minutes across 80+ specialties
