Diabetes Insipidus

Question 1

DI is the result of a decrease of how much in secretion of AVP

Answer 1

75%

Question 2

In DI the 24 hr urine is

Answer 2

> 40 mL/kg body weight,

Question 3

In DI the Urine Osmolarity is

Answer 3

<300 mosmol/L.

Question 4

In DI, Which of the following is true?

a. DI results in a massive rise in plasma osmolarity
b. Overt signs of dehydration are uncommon
c. In DI the 24 hr urine is >30 ml/kg
d. DI is the result of a decrease of 50% in AVP secretion

Answer 4

B

a. DI results in a slight rise in plasma osmolarity
b. Overt signs of dehydration are uncommon
c. In DI the 24 hr urine is >40 ml/kg
d. DI is the result of a decrease of 75% in AVP secretion