A pharmacy technician inadvertently labels a prescription medication with the wrong directions for use. However, the pharmacist catches the error before dispensing the medication to the patient. This is an example of which of the following?

Unauthorized drug error
Error of omission
Potential error
Prescribing error

Potential error

Rationale: In this example, since the pharmacist caught the technician's error before dispensing the medication, it constitutes a "potential error".