The nurse is caring for a patient with unilateral left renal artery stenosis secondary to atherosclerotic disease. The patient is placed on an angiotensin converting enzyme (ACE) inhibitor and serum creatinine rises by 3 mg/dL. What is the most likely explanation for this reaction to this medication?

A young adult patient with phenylketonuria who is taking tyrosine supplements complains of severe headaches. Which of the following responses by the nurse is most appropriate?

The nurse overhears a colleague preparing a dose of naltrexone. The nurse offers to assist and ensures the colleague takes which actions? Select all that apply.