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",
Medical school based on lectures, simulations, standardized-patient sessions, problem-based learning sessions, seminars, and observational clinical experiences. By year three, most schools have begun the non-elective, clinical-rotation block with accompanying academic courses (these include but are not limited to internal medicine, pediatrics, general surgery, anaesthesiology, orthopaedics, gynaecology and obstetrics, emergency medicine, neurology, psychiatry, oncology, urology, physical medicine and rehabilitation, ophthalmology, and otorhinolaryngology). Elective rotations are usually introduced in the fourth or fifth year, though as in the case of the non-elective rotations, "the hospitals the medical students may be placed in or apply to for a given rotation depend entirely on the medical