Problem: Nurse Emma is treating a patient with hyponatremia, low urine output, and confusion, and suspects SIADH. What is the primary pathophysiological mechanism of SIADH, and which diagnostic test result is most indicative of this condition? Need Assignment Help?
A. O Overproduction of antidiuretic hormone (ADH); Low serum sodium and high urine osmolality B. • Insufficient production of cortisol; Low serum cortisol levels C. • Increased production of thyroid hormones; Low TSH levels D. O Excessive production of aldosterone; High serum sodium levels