This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Adrenal insufficiency causes: March 2011 
Select and explain. 
A. A rise in plasma sodium/potassium ratio, B. Low blood pressure, C. Increase breakdown of protein, D. All
B: Low blood pressure
Answer: B: Low blood pressure 
Explanation: Ans. B: Low blood pressure Features of an acute adrenal crisis include circulatory shock with severe hypotension, hyponatremia, hyperkalemia and, in some instances hypoglycemia and hypercalcemia.