Statements about acute adrenal insufficiency are true Except-

• A. Acute adrenal insufficiency presents with weakness,vomiting,fever,and hypotension.
• B. Hyponatremia occurs because of impaired renal tubule sodium resorption
• C. Hyperglycemia is usually present
• D. Acute adrenal insufficiency usually is secondary to exogenous glucocorticoid administration.