Phys of Renal Disease 1

Question 1

How is the net filtration pressure determined?

Answer 1

Sum of Hydrostatic Forces and Colloid Osmotic Forces

Question 2

What forces favor filtration?

Answer 2

Glomerular Hydrostatic Pressure

Question 3

What forces oppose Filtration?

Answer 3

Glomerular colloid osmotic pressure

Bowman’s capsule pressure

Question 4

What is the effect of Constriction of the Afferent Arteriole on GFR?

Answer 4

Decreases GFR

Question 5

What is the effect of Constriction of the Efferent Arteriole on GFR?

Answer 5

Increased GFR

Question 6

What is the effect of Dilation of the Afferent Arteriole on GFR?

Answer 6

Increased GFR

Question 7

What is the effect of Dilation of the Efferent Arteriole on GFR?

Answer 7

Decreased GFR

Question 8

What filtered substance gives the most realistic estimate of GFR?

Answer 8

Creatinine Highly filtered and not much reabsorbed

Question 9

Where is most of the Sodium Reabsorbed?

Answer 9

The proximal convoluded tubule

Question 10

What are substances that are excreted and reabsorbed completely? Where reabsorbed?

Answer 10

Amino Acids, Oligopeptides, glucose Carboxylates

Proximal Convoluded tubule

Question 11

Where is Potassium concentration REGULATED?

Answer 11

In the distal convoluded tubule and collecing duct