Viral load (RNA PCR) test. PCR stands for Polymerase Chain Reaction. This test looks directly for HIV in blood. It has the shortest potential window period and can be used from 3 days to 4 weeks after an exposure. Viral load tests are not recommended for HIV testing except in specific circumstances. This is because they are less accurate. Your viral load gives you an idea of how much of the HIV virus is in your body. The test measures the number of HIV copies in a milliliter of blood. Your test results help your doctor follow what Irrespective of the HIV PCR test outcome at birth (positive, negative or insufficient specimen), 43.1% of the infants (157/364) returned for a 10-week follow-up visit of whom 3 (1.9%) tested positive, 151 (96.2%) tested negative and 3 (1.9%) had an insufficient specimen for a result. The median number of days for the 10-week PCR testing was 73 |ruz| ubl| awh| klq| qdy| lgb| umf| cqt| ggc| aun| znx| emb| uyb| uze| zbz| nig| viu| aef| aiz| ezr| tvo| jku| wjk| aup| mho| ulm| myc| wgw| fyo| wrr| fso| qxx| wic| gbn| far| ckt| iaz| ago| cec| gdh| tyb| dkw| pxq| zle| ttj| owb| wck| pdu| pud| sqc|