Diuretic Agents (M1)

Question 1

What are agents that increases urine volume?

Answer 1

diuretic

Question 2

What are agents that cause an increase in renal sodium excretion?

Answer 2

natriuretic

Question 3

What percentage of NaHCO3 is reabsorbed into the blood in the proximal tubule? 1. What percentage of Na+ reabsorbed? 2

Answer 3

1. 85%

2. 66%

Question 4

What percentage of Na+ reabsorbed in the loop on Henle?

Answer 4

25%

Question 5

What portion of the Loop of Henle is impermeable to water?

Answer 5

Thick Ascending Limb

Question 6

What percentage of NaCl is reabsorbed into the blood in the distal convoluted tubule (DCT)?

Answer 6

10%

Question 7

What percentage of NaCl is reabsorbed into the blood in the collecting tubule?

Answer 7

2-5%

Question 8

What does antidiuretic hormone (ADH) regulate? 1. What are the mechanisms of doing this? 2

Answer 8

1. urine concentration

2. control permeability; inserts aquaporins into apical mem

Question 9

What does aldosterone regulate?

Answer 9

reabsorption of Na+ via ENaC

Question 10

What are the primary sites of H+ secretion?

Answer 10

intercalated cells

Question 11

What does PGE (prostaglandin E) help regulate?

Answer 11

salt reabsorption