IBSS 1540 Exam 2 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: C. angiotensin II syntehsis
Answer:
D hydrostatic pressure in Bowman's space A
Q: What is the clearance rate of PAH equivalent to?
Answer:
RPF
Q: How can you determine whether a substance is secreted or reabsorbed when you
are given its clearance data alongside creatinine clearance data?
Answer:
since the creatinine clearance data is equivalent to GFR, compare the substances
clearance data to that. If the substance is greater than creatinine, it must be secreted.
If it is less than creatinine, it is reabsorbed
,IBSS 1540 Exam 2 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: What happens to GFR if Kf increases?
Answer:
it will increase
Q: Renin release from the kidney is stimulated when there is a decrease in
Answer:
A. renal perfusion pressure
B. sympathetic nerve activity in the kidney
C. the plasma concentration of catecholamines
D. plasma osmolality A
Q: What is filtration fraction?
Answer:
the amount of RPF that gets filtered
,IBSS 1540 Exam 2 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: How do you calculate a filtration fraction?
Answer:
divide GFR by RPF
Q: What two variables is filtration fraction dependent upon?
Answer:
renal blood flow and GFR
Q: In the normal kidney, the amount of water and Na available for excretion will
decrease when
Answer:
A. the afferent arteriole dilates
B. there is a decrease in the filtration fraction
C. water and Na are secreted into the descending limb of the loop of Henle
D. there is a decrease in the maximal medullary interstitial osmotic gradient B
, IBSS 1540 Exam 2 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: An experimental drug has no detectable effect on GFR or RPF in patients with
normal renal
Answer:
function. However, when given to persons with high infrarenal angiotensin II and
low RPF,
plasma creatinine increased and the clearance of PAH decreased after a week of
treatment.
Based on these observations, it is most likely that this new drug:
A. enhanced NO synthesis at the afferent arteriole
B. increased the glomerular capillary Kf by stimulating mesangial cell relaxation
C. blocked the synthesis of prostaglandins
D. decreased resistance in the efferent arteriole C
Q: What is the effect of prostaglandins on GFR and RBF?
Answer:
Why? they increase both, since they cause vasodilation at the afferent arteriole
Latest 2026 Update
Q: C. angiotensin II syntehsis
Answer:
D hydrostatic pressure in Bowman's space A
Q: What is the clearance rate of PAH equivalent to?
Answer:
RPF
Q: How can you determine whether a substance is secreted or reabsorbed when you
are given its clearance data alongside creatinine clearance data?
Answer:
since the creatinine clearance data is equivalent to GFR, compare the substances
clearance data to that. If the substance is greater than creatinine, it must be secreted.
If it is less than creatinine, it is reabsorbed
,IBSS 1540 Exam 2 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: What happens to GFR if Kf increases?
Answer:
it will increase
Q: Renin release from the kidney is stimulated when there is a decrease in
Answer:
A. renal perfusion pressure
B. sympathetic nerve activity in the kidney
C. the plasma concentration of catecholamines
D. plasma osmolality A
Q: What is filtration fraction?
Answer:
the amount of RPF that gets filtered
,IBSS 1540 Exam 2 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: How do you calculate a filtration fraction?
Answer:
divide GFR by RPF
Q: What two variables is filtration fraction dependent upon?
Answer:
renal blood flow and GFR
Q: In the normal kidney, the amount of water and Na available for excretion will
decrease when
Answer:
A. the afferent arteriole dilates
B. there is a decrease in the filtration fraction
C. water and Na are secreted into the descending limb of the loop of Henle
D. there is a decrease in the maximal medullary interstitial osmotic gradient B
, IBSS 1540 Exam 2 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: An experimental drug has no detectable effect on GFR or RPF in patients with
normal renal
Answer:
function. However, when given to persons with high infrarenal angiotensin II and
low RPF,
plasma creatinine increased and the clearance of PAH decreased after a week of
treatment.
Based on these observations, it is most likely that this new drug:
A. enhanced NO synthesis at the afferent arteriole
B. increased the glomerular capillary Kf by stimulating mesangial cell relaxation
C. blocked the synthesis of prostaglandins
D. decreased resistance in the efferent arteriole C
Q: What is the effect of prostaglandins on GFR and RBF?
Answer:
Why? they increase both, since they cause vasodilation at the afferent arteriole
