Fluid deprivation test Fluid deprivation test A fluid or water deprivation test is a medical test which can be used to determine whether the patient has diabetes insipidus as opposed to other causes of polydipsia (a condition of excessive thirst that causes an excessive intake of water). The patient is required, for a prolonged period, to forgo intake of water completely, to determine the cause of the thirst. This test measures changes in body weight, urine output, and urine composition when fluids are withheld. Sometimes measuring blood levels of ADH (a synonym for vasopressin) during this test is also necessary. If there is
Osteopathic medicine in the United States Osteopathic medical students take the Osteopathic Oath, similar to the Hippocratic oath, to maintain and uphold the "core principles" of osteopathic medical philosophy. Revised in 1953, and again in 2002, the core principles are: Contemporary osteopathic physicians practice evidence-based medicine, indistinguishable from their MD colleagues. There are different opinions on the significance of these principles. Some note that the osteopathic medical philosophy is akin to the tenets of holistic medicine, suggestive of a kind of social movement within the field of medicine, one that promotes a more patient-centered, holistic approach to medicine, and emphasizes the role of the primary care