Calcium urine
If urine calcium levels are too high or too low, it may mean you have a medical condition, such as kidney disease or kidney stones. Kidney stones are hard, pebble-like substances that can form in one or both kidneys when calcium or other minerals build up in the urine. Most kidney stones are formed from calcium.
Cancer antigen 125 (CA-125) ovarian cancer cells
Cancer antigen 125 (CA-125) is a protein found in ovarian cancer cells. A CA-125 blood test measures the amount of cancer antigen 125 in the bloodstream. The protein is produced by the cells and can be found in the blood. A CA-125 blood test may be used to monitor ovarian cancer during and after treatment.
Cancer antigen 15-3 (CA 15-3) Breast cancer marker
Carbamazepine (Tegretol)
Carcinoembryonic antigen (CEA)
Cardiolipin Antibodies ( IgA )
Cardiolipin Antibodies ( IgG )
Cardiolipin Antibodies ( IgM)
CD3 / CD4 / CD8
CD4 Absolute count
Chikungunya
Several methods can be used for diagnosis of chikungunya virus infection. Serological tests, such as enzyme-linked immunosorbent assays (ELISA), may confirm the presence of IgM and IgG anti-chikungunya antibodies. IgM antibody levels are highest 3 to 5 weeks after the onset of illness and persist for about 2 months.