The 24-year-old patient presents to the emergency department complaining of malaise and intractable sore throat with onset 24 hours previously. Upon assessment, the nurse notes swollen cervical lymph nodes and a temperature of 39.3°C. The patient denies nasal discharge or cough. Which question by the nurse is most important?

The nurse uses an understanding of which physiologic process to explain why the patient feels out of breath at high altitudes?

A neonate’s newborn screen has tested positive for phenylketonuria. While diagnostic testing is performed, the nurse educates the parents to avoid foods high in which nutrient?