An expansion of the first cause argument is the Kalam cosmological argument, which also requires creatio ex nihilo: 1  Everything that begins to exist has a cause. 2  The universe began to exist. 3  Therefore, the universe has a cause.
A diagnostic test may be performed to detect and diagnose health problems. These tests can be useful in finding diseases and tracking their progression. There are many kinds of diagnostic tests. CT scans, PET scans, MRIs, ultrasound and blood tests are some of the different types. A computed tomography (CT) scan is a diagnostic imaging tool. They create cross-sectional pictures of the body using computer and X-ray technology.
In medicine, a diagnostic test is any kind of medical test performed to aid in the diagnosis or detection of disease.For example, such a test may be used to confirm that a person is free from disease, or to fully diagnose a disease, including to sub-classify it regarding severity and susceptibility to treatment.ost diagnostic tests are conducted on the living; however, some of these tests can also be carried out on a dead person as part of an autopsy.