Polydipsia is possible to rule out psychogenic polydipsia or habit polydipsia. Polydipsia is a symptom (evidence of a disease state), not a disease in itself. As it is often accompanied by polyuria, investigations directed at diagnosing diabetes insipidus and diabetes mellitus can be useful. Blood serum tests can also provide useful information about the osmolality of the body's extracellular fluids. A decrease in osmolality caused by excess water intake will decrease the serum concentration of red blood cells, blood urea nitrogen (BUN), and sodium. Polydipsia Polydipsia is excessive thirst or excess drinking. The word derives from the Greek () "very thirsty",
Defensive medicine Defensive medicine Defensive medicine, also called defensive medical decision making, refers to the practice of recommending a diagnostic test or medical treatment that is not necessarily the best option for the patient, but an option that mainly serves the function to protect the physician against the patient as potential plaintiff. Defensive medicine is a reaction to the rising costs of malpractice insurance premiums and patients’ biases on suing for missed or delayed diagnosis or treatment but not for being overdiagnosed. U.S. physicians are at highest risk of being sued, and overtreatment is common. The number of lawsuits against physicians in