A nurse is reviewing a client's prescriptions and notices that the dosage of one medication is three times the usual dose. The prescribing provider is unavailable for several days. What should the nurse do next?

C Contact the pharmacy and confirm that the dosage is safe to administer. A Withhold the medication until the prescribing provider is available. D Inform the charge nurse and administer the usual dose of the medication. B Request to speak with the provider who is covering for the prescriber.