Podcast
Questions and Answers
What percentage of potassium from the glomerular filtrate is reabsorbed by the proximal convoluted tubules?
What percentage of potassium from the glomerular filtrate is reabsorbed by the proximal convoluted tubules?
- 70% (correct)
- 50%
- 90%
- 30%
What is the result of inhibiting carbonic anhydrase?
What is the result of inhibiting carbonic anhydrase?
- Increased reabsorption of sodium and water
- Increased reabsorption of chloride
- Decreased reabsorption of bicarbonate, sodium, and water (correct)
- Increased reabsorption of potassium
What is the primary site of action for osmotic diuretics?
What is the primary site of action for osmotic diuretics?
- Collecting ducts
- Distal tubules
- Loop of Henle
- Proximal convoluted tubules (correct)
What is the effect of increased H+ concentration on potassium ion secretion?
What is the effect of increased H+ concentration on potassium ion secretion?
Which type of diuretics act on the ascending limb of the loop of Henle?
Which type of diuretics act on the ascending limb of the loop of Henle?
What is the main function of obligatory water reabsorption in the proximal convoluted tubules?
What is the main function of obligatory water reabsorption in the proximal convoluted tubules?
What is the primary reason for using diuretics in congestive cardiac failure?
What is the primary reason for using diuretics in congestive cardiac failure?
What is the primary mechanism of action of thiazide diuretics?
What is the primary mechanism of action of thiazide diuretics?
What is the approximate flow rate of the filtrate when it reaches the loop of Henle?
What is the approximate flow rate of the filtrate when it reaches the loop of Henle?
What is the approximate specific gravity of urine with an osmolality of 1200 mosmol/kg?
What is the approximate specific gravity of urine with an osmolality of 1200 mosmol/kg?
Which type of diuretics inhibit sodium reabsorption and are also potassium-sparing?
Which type of diuretics inhibit sodium reabsorption and are also potassium-sparing?
What is the primary purpose of urine analysis in clinical biochemistry?
What is the primary purpose of urine analysis in clinical biochemistry?
What type of substances are completely reabsorbed and not excreted in urine at normal or low plasma levels?
What type of substances are completely reabsorbed and not excreted in urine at normal or low plasma levels?
What is the primary mechanism of sodium reabsorption in the proximal convoluted tubules?
What is the primary mechanism of sodium reabsorption in the proximal convoluted tubules?
Which of the following inhibits the sodium-Pi co-transport system?
Which of the following inhibits the sodium-Pi co-transport system?
What is the net effect of sodium reabsorption in the proximal convoluted tubules?
What is the net effect of sodium reabsorption in the proximal convoluted tubules?
What is the threshold value of glucose in plasma beyond which it is excreted in urine?
What is the threshold value of glucose in plasma beyond which it is excreted in urine?
What is the purpose of the Na+ to H+ exchange system in the proximal convoluted tubules?
What is the purpose of the Na+ to H+ exchange system in the proximal convoluted tubules?
