👉 "Ascertainment" is a medical word that refers to the process of discovering or determining the cause of an illness. It typically involves examining and testing a patient's body, as well as evaluating their symptoms and other diagnostic tests. Ascertainment can be used in a variety of settings, such as hospitals, clinics, or laboratories, depending on the specific needs of the patient. In medical terms, ascertainment is often associated with the process of diagnosing an illness by examining the body for signs and symptoms