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TLS Online TPP Program
#Question id: 12070
#Unit 7. System Physiology – Animal
A 26-year-old man develops glomerulonephritis, and his GFR decreases by 50% and remains at that level. For which of the following substances would you expect to find the greatest increase in plasma concentration?
TLS Online TPP Program
#Question id: 12071
#Unit 7. System Physiology – Animal
The most serious hypokalemia would occur in which of the following conditions?
TLS Online TPP Program
#Question id: 12072
#Unit 7. System Physiology – Animal
If the average hydrostatic pressure in the glomerular capillaries is 50 mm Hg, the hydrostatic pressure in the Bowman’s space is 12 mm Hg, the average colloid osmotic pressure in the glomerular capillaries is 30 mm Hg, and there is no protein in the glomerular ultrafiltrate, what is the net pressure driving glomerular filtration?
TLS Online TPP Program
#Question id: 12073
#Unit 7. System Physiology – Animal
The figure above shows the concentration of inulin at different points along the renal tubule, expressed as the tubular fluid/plasma ratio of inulin concentration. If inulin is not reabsorbed, what is the approximate percentage of the filtered water that has been reabsorbed prior to the distal convoluted tubule?
TLS Online TPP Program
#Question id: 12074
#Unit 7. System Physiology – Animal
Which of the following tends to increase potassium secretion by the cortical collecting tubule?
TLS Online TPP Program
#Question id: 12075
#Unit 7. System Physiology – Animal
A 48-year-old woman complains of severe polyuria (producing about 0.5 L of urine each hour) and polydipsia (drinking two to three glasses of water every hour). Her urine contains no glucose, and she is placed on overnight water restriction for further evaluation. The next morning, she is weak and confused, her sodium concentration is 160 mEq/L, and her urine osmolarity is 80 mOsm/L. Which of the following is the most likely diagnosis?