"I know exactly what I would do in every situation like this, as I have been trained thoroughly on the importance of double checking all patient medications before administering. Upon receiving the acetic acid, I would read details on the label to verify that I am using that and that only. In the case that I should ever receive the wrong medication or chemical requested, I would instantly let the staff know and work to help prevent a future error moving forward."

To effectively answer this question, you need to indicate that they would verify that you have the correct chemical by checking the label on the bottle. To ensure that your interviewers understand that you are aware of the importance of this simple action, reiterate that you would always prioritize this simple action of double checking the medication you were about to administer with any patient you will be working with as a resident in their program.