A 64-year-old man is evaluated for cough, dyspnea, ...
To expand, SIADH may also result in euvolemic hyponatremia. This is because, as we know, ADH increases absorption of water and therefore initially results in an increased circulating volume. However, this results in increased stretch of the atria and subsequent secretion of ANP. ANP (atrial natriuretic peptide) then results in loss of sodium and water.
Omg literally the same thought process I had, that phrase through me off!
SIADH = MC paraneoplastic syndrome of small oat cell lung cancer.
Also, Cushing syndrome would cause would weight gain, skin hyperpigmentation, and hypokalemia. Not, lyperlipidemia.