Wiktionary(5.00 / 1 vote)Rate this definition: 1  tension(Noun) Psychological state of being tense. 2  tension(Noun) Condition of being held in a state between two or more forces, which are acting in opposition to each other. 3  tension(Noun) State of an elastic object which is stretched in a way which increases its length.
...risky behavior and that you were not exposed to any HIV-infected fluids. The only way to know for sure whether you have been infected is to get tested. You should wait for 3 months after a possible exposure. Then get an HIVblood test (see Fact Sheet 102 ). You might feel that you have been exposed toHIV by sharing needles, an accident, or unsafe sexual activity. In these cases, talk to your health care provider immediately .
1 Another test looks for antibodies and a substance made by the virus, called an antigen. It can find HIV in as little as 2 weeks after youâve been exposed.  The RNA test, which looks for the virus itself instead of antibodies, can diagnose HIV about 10 days after exposure.