After a seven day treatment with an IV antibiotic, the healthcare provider discharges a client from the hospital and writes a prescription for an oral antibiotic. While providing discharge instructions, the nurse notes that the dosage for the oral antibiotic is significantly higher than the IV antibiotic. Which resource should the nurse use first in resolving the situation?

Choice A reason: Consulting the charge nurse may provide guidance, but the charge nurse is not the primary resource for verifying medication dosages. The nurse should first confirm whether the dosage difference is appropriate before escalating to another staff member. Choice B reason: Using a medication reference guide is the correct action because oral and IV antibiotics often differ in dosage due to variations in absorption and bioavailability. Oral medications typically require higher doses to achieve therapeutic levels compared to IV administration. The medication reference guide provides authoritative information to confirm whether the prescribed oral dosage is safe and appropriate. Choice C reason: Consulting the hospital pharmacist is an excellent resource for medication safety, but the nurse should first verify the dosage independently using a reference guide. If discrepancies remain after checking, then the pharmacist can be consulted for clarification. Choice D reason: Contacting the healthcare provider is necessary if the dosage is confirmed to be incorrect, but the nurse should first verify the information using a reliable reference. This ensures that communication with the provider is informed and accurate.