The Quarterly Budget-To-Actual Expense Report for the Emergency Department of a Large

The quarterly budget-to-actual expense report for the Emergency Department of a large hospital shows expenses 20% higher than budgeted. Which of the following would be an acceptable reason for the cost overrun?

A) A hospital 20 blocks away closed its emergency department.
B) The unit costs of supplies increased an average of 12%.
C) A scheduled pay raise for orderlies and aides went into effect.
D) IV solution prices were going to rise, so the ED doubled its order.