This is a list of medical tests and procedures used to obtain health information and diagnose pathological and nonpathological conditions of the human body. It is grouped by type of procedure and ordered alphabetically. (See alsoddiagnosis; medicine; pathology.) cellular and chemical analysis Prostate-specific antigen, or PSA, is a protein produced by normal, as well as malignant, cells of the prostate gland. The PSA test measures the level of PSA in the blood. For this test, a blood sample is sent to a laboratory for analysis. The results are usually reported as nanograms of PSA per milliliter (ng/mL) of blood. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Karyotyping is a test to examine chromosomes in a sample of cells. This test can help identify genetic problems as the cause of a disorder or disease. Summary. A differential diagnosis is a list of possible conditions that share the same symptoms. For example, fatigue can be a symptom of anemia, depression, heart disease, thyroid disease, and To diagnose Alzheimer's dementia, doctors conduct tests to assess memory impairment and other thinking skills, judge functional abilities, and identify behavior changes. They also perform a series of tests to rule out other possible causes of impairment. Alzheimer's dementia can be diagnosed in several different ways. Nazi Medical Experiments. During World War II, a number of German physicians conducted painful and often deadly experiments on thousands of prisoners without their permission. Considering the inhumane conditions, lack of consent, and questionable research standards, modern scientists overwhelmingly reject the use of results from experiments in .

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