Posted , 6 users are following.
Ive tried to get answers but havent got much luck.
does anyone know the chances of a false negative on HSV2 testing ? I got tested and my results were negative but i took the test a month after I noticed a sore .
0 likes, 13 replies
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ann14932 amelia36045
Posted
Was it a swab test or blood test?
amelia36045 ann14932
Posted
it was a blood test
Pana1 amelia36045
Posted
yes. blood tests should be igg and not igm & taken 16 weeks post exposure to be accurate but sometimes it can take up to 6 months for antibodies to be detected
swab tests should be done within 48 hours and/or before the sores heal.
bottom line is if blood test is done early and swab tests is done too late then that can cause false negative results.
hope this helps and good luck!
david93672 Pana1
Posted
so if the igg test was done 1 year after exposure, how accurate are the results? if they didn't detect any antibodies for hsv1/hsv2 does that mean you 100 percent don't have it?
Pana1 david93672
Posted
yes, should be conclusive at 6 months
amelia36045 Pana1
Posted
i got the igm and igg . but no swab does that mean i have herpes ? im really scared
Pana1 amelia36045
Posted
if you have the sore then definitely get it swab ASAP. Go back at 12-16 weeks for another blood test if swab is negative
did your doctor exam your sore?
amelia36045 Pana1
Posted
i dont have it anymore but when i did she said it didnt look like herpes so she just gave me a blood test since i was worried
kim70825 amelia36045
Posted
based on what my doctor told me its possible to get a false negative on a blood test. extremely unlikely to have a false negative if a swab /culture was done
amelia36045 kim70825
Posted
what are the chances of a false negative with blood though? Does that mean i have herpes ?
kim70825 amelia36045
Posted
the blood work can but im not saying it did. the swab is best
sam35005 amelia36045
Posted
according to literature and studies: 15-30% of tests on people proven to have hsv by culture tests still test negative also after 4 months.
blood tests are just never as accurate as culture tests performed within 2 days after the sores
Pana1 sam35005
Posted
safe to say that all std testing, including herpes, should be conclusive at 6 months post exposure via blood test? I haven't seen a case where it goes beyond 6 months before test results shows positive if they contradicted any std