But it does not give clear-cut information. The results of a CEA test are usually considered along with other laboratory and/or imaging studies to follow the course of the disease.
Encouraging but not conclusive. The "window period" for HIV testing is generally considered to be 90 days. The virus can show up in as little as four weeks, but it can take up to 12. I would get...
With modern HIV tests, yes, a 10-week test is conclusive. 95% of people infected with HIV with seroconvert and test positive after 6 weeks, and by 10 weeks it's just over 99%. By 13 weeks, it's...