Question

there can be more than one right answer. I think it is ABCD, is that right? or only some of them or something else?

13. Which of the following changes will lead to a decrease in Na+ reabsorption?

A. decreased stroke volume

B. dilation of afferent arterioles

C. decreased paracrine agent delivered to JG cells by macula densa

D. less angiotensinogen secreted by the liver

E. less ANP secreted by the atria

Answer 1

Option a is wrong as it will lead to increase in sodium absorption to increase stroke volume

Option b is wrong as afferent arterioles dialtion cause increase in sodium absorption to increase fluid

Option c is correct as when decrease in paracrine agent occur it will lead to vasoconstriction and reduce absorption of sodium

Option d is correct as less angiotensin will reduce the amount of sodium absorbed

Option e is correct as it will cause retention of sodium

Answer is Option c ,d and e