PNB 2275 Exam 4 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Adenosine causes vasoconstriction and NO causes vasodilation. When GFR increases, Macula Densa
will release which paracrine as part of the TGF response:
a) Adenosine
b) NO - CORRECT ANSWER a) Adenosine- causes vasoconstriction
Renal clearance
A.is proportional to GFR
B.refers to the renal abilities to remove a substance from the plasma
C.should be zero for a healthy subject. - CORRECT ANSWER B.refers to the renal abilities to
remove a substance from the plasma
Of the following substances, which has the lowest renal clearance in a normal healthy person?
A. Bicarbonate (HCO3)
B. PAH (para-aminohippurate), a substance is freely filtered, secreted, but not reabsorbed
C. Inulin, a substance is freely filtered, not secreted or reabsorbed
D. Glucose - CORRECT ANSWER D. Glucose
Basically, all glucose is reabsorbed
Of the following substances, which has the highest renal clearance in a normal healthy person?
A. Bicarbonate (HCO3)
B. PAH (para-aminohippurate), a substance is freely filtered, secreted, but not reabsorbed
C. Inulin, a substance is freely filtered, not secreted or reabsorbed
, D. Glucose - CORRECT ANSWER B. PAH (para-aminohippurate), a substance is freely
filtered, secreted, but not reabsorbed
When using creatinine to estimate GFR, it will ______
A.overestimate the GFR slightly
B.underestimate the GFR slightly
C.accurately estimate the GFR - CORRECT ANSWER A.overestimate the GFR slightly (5-
10%)
Which of the following substances are expected to increase in urine of Fanconi's syndrome patients, a
renal disease that results from impaired ability of the proximal tubule?
HCO3-
Amino acids
Glucose
Low molecular-weight proteins
All of the above - CORRECT ANSWER All of the above
The clearance of penicillin is _________ the GFR.
A) larger than
B) smaller than
C) equal to - CORRECT ANSWER A) larger than
What effect would a decrease in pH in plasma have on the amount of potassium ion in the urine?
A) an increase in the amount of potassium in the urine
B) a decrease in the amount of potassium in the urine
C) no effect on the amount of potassium in the urine - CORRECT ANSWER B) a decrease in
the amount of potassium in the urine
QUESTIONS AND CORRECT ANSWERS
Adenosine causes vasoconstriction and NO causes vasodilation. When GFR increases, Macula Densa
will release which paracrine as part of the TGF response:
a) Adenosine
b) NO - CORRECT ANSWER a) Adenosine- causes vasoconstriction
Renal clearance
A.is proportional to GFR
B.refers to the renal abilities to remove a substance from the plasma
C.should be zero for a healthy subject. - CORRECT ANSWER B.refers to the renal abilities to
remove a substance from the plasma
Of the following substances, which has the lowest renal clearance in a normal healthy person?
A. Bicarbonate (HCO3)
B. PAH (para-aminohippurate), a substance is freely filtered, secreted, but not reabsorbed
C. Inulin, a substance is freely filtered, not secreted or reabsorbed
D. Glucose - CORRECT ANSWER D. Glucose
Basically, all glucose is reabsorbed
Of the following substances, which has the highest renal clearance in a normal healthy person?
A. Bicarbonate (HCO3)
B. PAH (para-aminohippurate), a substance is freely filtered, secreted, but not reabsorbed
C. Inulin, a substance is freely filtered, not secreted or reabsorbed
, D. Glucose - CORRECT ANSWER B. PAH (para-aminohippurate), a substance is freely
filtered, secreted, but not reabsorbed
When using creatinine to estimate GFR, it will ______
A.overestimate the GFR slightly
B.underestimate the GFR slightly
C.accurately estimate the GFR - CORRECT ANSWER A.overestimate the GFR slightly (5-
10%)
Which of the following substances are expected to increase in urine of Fanconi's syndrome patients, a
renal disease that results from impaired ability of the proximal tubule?
HCO3-
Amino acids
Glucose
Low molecular-weight proteins
All of the above - CORRECT ANSWER All of the above
The clearance of penicillin is _________ the GFR.
A) larger than
B) smaller than
C) equal to - CORRECT ANSWER A) larger than
What effect would a decrease in pH in plasma have on the amount of potassium ion in the urine?
A) an increase in the amount of potassium in the urine
B) a decrease in the amount of potassium in the urine
C) no effect on the amount of potassium in the urine - CORRECT ANSWER B) a decrease in
the amount of potassium in the urine
