Renal 4

Question 1

clearance

Answer 1

the rate at which solute disappears from the body by excretion or metabolism

Question 2

Clearance of X =

Answer 2

excretion rate of X / [X]plasma

Question 3

Clinicians commonly use __________ clearance as a measure of GFR and indicator of renal function

Answer 3

creatinine

Question 4

creatinine clearance slightly ____________ GFR

Answer 4

overestimates

Question 5

inulin clearance is ______ to GFR

Answer 5

equal

Question 6

net reabsorption

Answer 6

If clearance of a substance is less than what was filtered

Question 7

net secretion

Answer 7

If clearance of a substance is greater than what was filtered

Question 8

GFR=clearance

Answer 8

filtered, not reabsorbed, not secreted

Question 9

micturition reflex

Answer 9

filling of the bladder activating stretch receptors

Question 10

Urge to urinate appears around..

Answer 10

200ml

Question 11

____ left in bladder after micturition

Answer 11

~10ml

Question 12

When are internal sphincters forced open?

Answer 12

once exceeding 500ml

Question 13

incontinence

Answer 13

inability to control urination voluntarily

Question 14

Causes of incontinence

Answer 14

infancy, damage to internal or external sphincter, spinal cord damage, aging