A client with chronic kidney disease is scheduled to be given the following medications: digoxin (Lanoxin) and epoetin alfa (Epogen). The client reports nausea and vomiting and wishes to wait to take the medications. Which action by the nurse is most appropriate?

a. Administer both medications with soda crackers.
b. Allow the client to wait an hour before taking the medications.
c. Review today’s potassium level and notify the health care provider.
d. Call the health care provider to get an order for anti-nausea medication.