A nurse is reviewing the medical record of a client who has sinusitis and a new prescription for cefuroxime. WHich of the following client information is the priority for the nurse to report to the provider?

  1. The client reports a history of nausea with cefuroxime
  2. The client has a history of severe PCN allergy 
  3. The client has a BUN level of 18 mg/dL
  4. The client takes an aspirin daily.