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",
Shared decision-making in medicine insight into how state-of-the-art advances in medical science can be transformed into state-of-the-art clinical decision making and improved health communication.” Shared decision-making in medicine Shared decision-making in medicine (SDM) is a process in which both the patient and physician contribute to the medical decision-making process. Health care providers explain treatments and alternatives to patients and help them choose the treatment option that best aligns with their preferences as well as their unique cultural and personal beliefs. In contrast to SDM, the traditional biomedical care system placed physicians in a position of authority with patients playing a passive role in care.