Renal Quiz #3Kidney Anatomy and Physiology

1. A 25-year-old male presents with hypertension and a serum potassium level of 5.8 mEq/L. Further investigation reveals low plasma renin activity and a suspected diagnosis of hyperaldosteronism. Aldosterone primarily acts on which of the following segments of the nephron to exert its effects? 

Question 1 of 5

2. A 40-year-old woman with a history of recurrent kidney stones is advised to increase her water intake to 2.5 liters per day. Increasing water intake will primarily affect which part of the nephron to reduce stone formation? 

Question 2 of 5

3. A 55-year-old man with chronic kidney disease is found to have elevated serum creatinine and blood urea nitrogen (BUN) levels. Which part of the nephron is primarily responsible for the filtration of blood to form urine? 

Question 3 of 5

4. During a marathon, a runner experiences severe dehydration. Which of the following changes in the nephron is most likely to occur as a compensatory mechanism? 

Question 4 of 5

5. A patient presents with acidosis. Which part of the nephron is primarily involved in the regulation of blood pH through the reabsorption of bicarbonate and the secretion of hydrogen ions? 

Question 5 of 5


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