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 to ensure that the patient understood the information. The second facet of SDM, as proposed by this model, is assertive utterances, which may include making recommendations to physicians, expressing an opinion or preference, or expressing disagreement. The third component of the model is information provision of symptoms, medical history and psychosocial factors, with or without prompting from the physician. The final component of SDM is expressions of concern, including affective responses such as anxiety, worry, or negative feelings. The extent of participation can be determined based on how often a patient displays these four overarching behaviors. SDM increasingly relies on