Which One of the Following Would Not Constitute a Medication

Multiple Choice

Which one of the following would not constitute a medication error?

A) An extra dose of antibiotic is given to a patient after the stop date but causes no harm to the patient.
B) A unit-dose medication is returned from the nursing floor for credit and is reused.
C) Too much heparin is given to a patient, which results in a stroke.
D) All are medication errors.