###Human: Is it fine to have PCR tests negative but antigen test positive for hepatitis C? ###Assistant: Hi. You had a history of laparotomy operation as a consequence of ruptured ectopic pregnancy. But none of the surgical management has been related to your low TSH level. TSH level can be altered in infective condition or sometimes temporary due to non-thyroid illness. I suggest you repeat your serum TSH estimation and serum free T4 estimation after few days and revert back with that report. For low vitamin D level, you need to take Cholecalciferol sachet once a week for eight weeks or tablet can be prescribed. You can rely on PCR testing for HCV as it can be considered superior testing.