Whats wrong with my liver? jaundiced, yellow urine. how do they test for hepatitis a?

Simple blood test: Hepatitis a is preventable--it is spread by fecal-oral route, & good vaccine exists. It can occur sporadically or in epidemic form. Disease in children is often mild & frequently subclinical or little more than gastroenteritis, but more serious & prolonged in adults. Rare fulminant form with marked jaundice, or "relapsing" course that eventually resolves. Is never chronic nor leads to cirrhosis.

Blood: A blood test can check for hepatitis a. But other things need to be excluded. Please get this checked tomorrow.