Measurement of the functions of a nephron reveals a glomerular capillary pressure of 59 mm Hg, and a pressure in the capsular space of 15 mm Hg. Assuming that the blood colloid osmotic pressure is 30 mm Hg, and that essentially no plasma proteins are filtered by the glomerulus, what is the net filtration pressure in this case?

Correct Answer: B

Rationale: NFP = GCP - (COP + CSP) = 59 - (30 + 15) = 14 mm Hg.

Correct Answer: B

Rationale: Zollinger-Ellison syndrome is caused by gastrinomas, which are distinct from carcinoid tumors (typically serotonin-producing); they do not resemble each other histologically.

Correct Answer: B

Rationale: Laennec's (alcoholic) cirrhosis features spider angiomas, testicular atrophy (hormonal imbalance), parotid enlargement, and Dupuytren's contracture; clubbing is less common unless hypoxemia develops.

Correct Answer: D

Rationale: Agranulocytosis is the most serious and significant side effect of antithyroid drugs (e.g., propylthiouracil), requiring monitoring.

Correct Answer: A

Rationale: Low T-waves and weakness post-treatment indicate hypokalemia, as insulin drives potassium into cells.