This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid and electrolytes, Subject name: Medicine
All are causes of hypervolemic hyponatremia except 
Select and explain. 
A. Hypothyroidism, B. Cirrhosis, C. Chronic renal failure, D. Nephrotic syndrome
A: Hypothyroidism
Answer: A: Hypothyroidism 
Explanation: Causes of hypervolemic hyponatremia Urine sodium concentration >20 mmol/L Acute or chronic renal failure Urine sodium concentration <20 mmol/L Nephrotic syndrome Cirrhosis Cardiac failure Causes of Euvolemic hyponatremia Glucocoicoid deficiency Hypothyroidism Stress Drugs Syndrome of inappropriate antidiuretic hormone secretion Ref: Harrison 19e pg: 299