Hi, I am a bit confused with my test results. I had my yearly physical checkup and my CBC test reults came back saying my WBC was low (3.4) and I had Leucopenia (term for low WBC count?). I got scared after reading the causes for this and went in for testing for HIV using the rapid test. The test was inconclusive, from what the doctor said, but could maybe positive because he wasn't sure if there was faint line in the test result strip. So they drew blood again, sent it out for testing and asked me to come back in a week.
When I got my results they explained my results as follows:
Particle Agglutination (PA) test HIV1 and HIV 1/2: negative
Antigen Antibody test: negative
Also they performed a PCR test (40 copies/ml and above): negative
The doctor said they did not perform a Western Blot test. I guess I was relieved at hearing this, but still didn't really fully understand what a PCR test was, so I read some sites on this topic.
Some things I am confused on are:
Why they performed a PCR test?
Also, how accurate is the PA test as compared to the Elisa test. I have heard the that the Elisa/Western Blot test provides the best results. Are my results above just as accurate?
Last, what can cause a low WBC count? I am currently going to meet with my physician to do some more testing over my WBC, but was wondering.
I appreciate any feedback.