Which Steps Should You Take to Identify Possible Drug Errors

Which steps should you take to identify possible drug errors in a patient's drug orders? (Select all that apply.)

A) Call the pharmacy.
B) Clarify anything that is unreadable
C) Ask the patient about the drug.
D) Reconcile the drug list with an old drug record.
E) Clarify vague orders with the healthcare provider.
F) Check the original written order with the healthcare provider.