This document lists and describes 65 diagnostic medical tests used to detect various diseases. Some examples included are the Allen test for ABG analysis, phosphate test for pasteurization, tourniquet test for dengue, and Schilling test for vitamin B12 absorption. Cancer diagnostic tests mentioned are CA15-3 for breast cancer, CA19-9 for GI cancers like pancreatic and liver cancer, and CA125 for ovarian cancer. AIDS diagnostic tests covered are ELISA for HIV screening, Western blot for HIV confirmation, and CD4 count as a predictor of HIV with a count below 200.