Medicine The syndrome of inappropriate and antidiuretic hormone is characterized by the following – A Hyponatremia and urine sodium excretion > 20 meq/I B Hypernatremia and urine sodium excretion > 20 meq/I C Hyponatremia and hyperkalemia D Hypernatremia and hypokalemia 💡 Explanation The syndrome of inappropriate and antidiuretic hormone is characterized by the following - ✓ Correct Answer: A. Hyponatremia and urine sodium excretion > 20 meq/I