Question 420 · LEK · Syndrome of inappropriate antidiuretic hormone secretion (SIADH)
Ectopic overproduction of vasopressin (ADH) by a tumour will cause:
- A. polycythaemia.
- B. hyperkalaemia.
- C. hypernatraemia.
- D. hyponatraemia.
- E. hypercalcaemia.
Hint
ADH makes the kidney retain free water without sodium; predict what happens to plasma sodium concentration.
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