Risperdal Consta treats the manic episodes associated with bipolar disorder. It does this by maintaining balance of the neurotransmitters inside the brain. For bipolar disorder, injections will most likely be given once every two weeks.
HIV antibody testing is used to screen for and diagnose HIV infections. Since there is no cure, early treatment of HIV infection and immune system monitoring can greatly improve long-term health and survival. Also, if a person knows his HIV status, it may help change behaviors that can put him and others at risk. Verify a positive with a second HIV antibody test that differentiates between HIV-1 and HIV-2. 2  If results between the first and second test do not agree, then the next test to perform is a HIV-1 RNA test (nucleic acid amplification test, NAAT).
In the hepatitis B surface antigen test, a reactive or positive result means that a person is currently infected with the hepatitis B virus, explains the Hepatitis B Foundation. Reactive results from the hepatitis B surface antibody test means that people are now immune to the virus because they have been infected in the past and their immune systems produced antibodies to fight the infection.