Central diabetes insipidus _________________. Select all that apply.

Question

results in increased plasma osmolarity.
results in excess water secretion.
causes increased blood glucose.
is another form of diabetes mellitus.
is caused by oversecretion of ADH.

Answer 1

Central diabetes insipidus is characterized by the following:

1. Results in increased plasma osmolarity. - True. In central diabetes insipidus, the lack of antidiuretic hormone (ADH) leads to insufficient reabsorption of water in the kidneys, resulting in more dilute urine and increased plasma osmolarity.

2. Results in excess water secretion. - True. Due to inadequate ADH, the kidneys excrete large volumes of dilute urine, leading to excess water loss.

3. Causes increased blood glucose. - False. Central diabetes insipidus does not typically cause increased blood glucose levels. Increased blood glucose levels are more associated with diabetes mellitus, not diabetes insipidus.

4. Is another form of diabetes mellitus. - False. Central diabetes insipidus is a distinct condition and is not a form of diabetes mellitus. Diabetes mellitus is characterized by issues related to insulin and glucose metabolism, whereas diabetes insipidus is related to water regulation.

5. Is caused by oversecretion of ADH. - False. Central diabetes insipidus is actually caused by insufficient secretion of ADH (antidiuretic hormone), often due to damage to the hypothalamus or pituitary gland.

Thus, the correct statements are:

• Results in increased plasma osmolarity.
• Results in excess water secretion.