A patient in an agitated state is brought to the emergency department. The physician verbally orders 2mL IM (intramuscular) of Vistaril. The healthcare professional draws up 2 mL from a vial 50mg/mL. Then she notices another vial of Vistaril labeled 25mg/mL.
What should she do?

This is your Med school homework, that do you think the proper response would be, and why? Its imperative you know this and know why...