A nurse receives a handwritten medication order that is partially illegible and contains an abbreviation not on The Joint Commission's approved list. What is the nurse's best initial action to ensure safe medication administration?

Contact the prescriber to clarify the unclear parts and confirm the intended medication and dosage.

Discard the order and request a new one from the prescriber without attempting clarification.

Administer the medication based on the most common dosage and route for that medication to avoid delay.

Consult the pharmacy to interpret the order and proceed with their recommendation