Renal Quiz .. 12/8/2017 Dr. Ahmad .S.
Alarabi
Name/ ______________________________________ اإلســــــــــــم
Enrollment No/ ____________________________ رقــم القــــيـد
MCQ Exam: Choose the most appropriate answer. Time allowed = 30 minutes
Q1: Glucose is reabsorbed at luminal border:
a) By passive transport. b) By Na+ co-transport. c) By H+ counter transport.
d) By diffusion.
Q2: In humans, what percentage of nephrons has long loop of Henle:
a) 5. b) 15. c) 35. d) 85.
Q3: Normally, most of the filtered HCO3– is reabsorbed from:
a) PCT. b) DCT. c) Cortical collecting ducts. d) Loop of Henle.
Q4: GFR would be decreased by:
a) Mild constriction of the efferent arteriole.
b) An increase in afferent arteriolar pressure.
c) An increase in renal blood flow.
d) A decrease in the concentration of plasma proteins.
e) None of the above.
Q5: H+ secretion in PCT is primarily associated with:
a) Excretion of K+. b) Reabsorption of ca++. c) Reabsorption of bicarbonate.
d) Reabsorption of phosphate. e) Reabsorption of water.
Q6: The juxtaglomerular cells of JGA secrets:
a) Aldosterone. b) ADH. c) Angiotensin II. d) Renin. e) Adrenaline.
Q7: ADH will be released from posterior pituitary when there is a decrease in:
a) Plasma Na+ concentration. b) Plasma volume. c) Plasma K+ concentration.
d) Plasma PH. e) Both a & b are correct.
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Renal Quiz .. 12/8/2017 Dr. Ahmad .S. Alarabi
Q8: The following data were collected from an adult male:
o Plasma glucose level = 135 mg / dL.
o Concentration of inulin in plasma = 50 mg / dL.
o Concentration of inulin in urine = 60 mg / ml.
o Volume of urine collected in 40 minute = 60 ml.
o The subject’s GFR was:
a) 7200 ml/min. b) 180 ml/min. c) 0.5 ml/min. d) 0.5 L/min. e) 7.2 L/min.
Q9: Based on the above data, his glucose tubular load was:
a) 243 ml/min. b) 675 mg/min. c) 243 mg/dl. d) 243 mg/min. e) 243 mg/ml.
Q10: Renin secretion by the kidney is increased by:
a) Increasing mean blood pressure. b) Increasing GFR.
c) Increasing sympathetic activity. d) Increasing angiotensin II synthesis.
e) Increasing atrial natriuretic hormone secretion.
Q11: Renal correction of hyperkalemia will result in:
a) Increase in PH. b) Increase in bicarbonate excretion.
c) Decrease in chloride plasma concentration. d) All of the above. e) a & b are correct.
Q12: Administration of Furosemide leads to:
a) Excretion of hypo-osmotic fluid. b) Increase in urine flow rate.
c) Decrease solute delivery to DCT. d) Hypervolemia. e) None of the above.
Q13: Abnormal high levels of ADH may result in:
a) Decrease in Na+ concentration in plasma. b) Secretion of concentrated urine.
c) Increase in urine flow rate. d) Diuresis. e) Both a & b are correct.
Q14: Which of the following statements about renin is correct:
a) It is secrete by cells of PCT.
b) Its secretion leads to loss of Na+ & water from plasma.
c) Its secretion is stimulated by increase in mean renal arterial pressure.
d) It converts angiotensinogen to angiotensin I.
e) It converts angiotensin I to angiotensin II.
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Renal Quiz .. 12/8/2017 Dr. Ahmad .S. Alarabi
Q15: The amount of potassium excretion by the kidney will decrease:
a) If circulating aldosterone levels increase.
b) If dietary intake of potassium increases.
c) If Na+ reabsorption by the distal nephron decreases.
d) In the case of alkalosis.
e) None of the above.
Q16: Which of the following substances will be more concentrated at end of PCT if compared at
the beginning of PCT:
a) Glucose. b) Creatinine. c) Sodium. d) Phosphate. e) None of the above.
Q17: In dehydrated subject, osmolarity of tubular filtrate drops as it goes through:
a) Descending limb of loop of Henle. b) PCT. c) DCT.
d) Ascending limb of loop of Henle. e) Cortical collecting ducts.
Q18: Which of the following is NOT seen in CRF patient:
a) Acidosis. b) Hyperkalemia. c) Uremia.
d) Hypervolemia. e) None of the above.
Q19: Hyperkalemia can result from:
a) Administration of spironolactone. b) Administration of CA inhibitors. c) Alkalosis.
d) Drinking a large amount of water. e) Both a & b are correct.
Q20: Low levels of ADH:
a) Are reached at end of a fasting day.
b) Are accompanied by increased plasma Na+ concentration.
c) Leads to formation of hypo-osmotic urine.
d) Can be a result of supra-optic nucleus damage.
e) Both b & d are correct.
End of questions
Hard Luck
