DI s/s typically include:

DI s/s typically include:

• A. Polydypsia and polyuria which leads to dehydration
• B. Weight gain and edema
• C. Bradycardia and hypotension
• D. Polyphagia and weight loss

Answer: (A)

Diabetes insipidus causes the kidneys to discharge large amounts of dilute urine because ADH isn’t working properly. That leads to thirst as the body tries to compensate, so you get polydipsia and polyuria. If fluid intake doesn’t keep up, dehydration develops. This trio—excessive thirst, excessive urination, and dehydration—is the classic pattern for DI, which is exactly what the option describes. The other signs don’t fit as neatly: weight gain and edema point to fluid retention seen in conditions like SIADH or heart failure; bradycardia isn’t typical with DI (dehydration usually causes a faster heart rate); polyphagia and weight loss are more characteristic of diabetes mellitus due to insulin deficiency, not DI.

Diabetes insipidus causes the kidneys to discharge large amounts of dilute urine because ADH isn’t working properly. That leads to thirst as the body tries to compensate, so you get polydipsia and polyuria. If fluid intake doesn’t keep up, dehydration develops. This trio—excessive thirst, excessive urination, and dehydration—is the classic pattern for DI, which is exactly what the option describes.

The other signs don’t fit as neatly: weight gain and edema point to fluid retention seen in conditions like SIADH or heart failure; bradycardia isn’t typical with DI (dehydration usually causes a faster heart rate); polyphagia and weight loss are more characteristic of diabetes mellitus due to insulin deficiency, not DI.