A patient with heart failure is unable to walk from the kitchen to the bedroom without becoming dyspneic. However, the dyspnea resolves with rest. The nurse recognizes this patient has which class of heart failure according to the New York Heart Association classification system?

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?

A 16-year-old boy is brought to the clinic by his mother with complaints of strange noises and movements. The boy states, “I can’t stand that I make this weird noise with my mouth. I can feel it coming, and I try to stop it for as long as I can, but eventually it just comes out. The other kids at school make fun of me. It’s so embarrassing.” The mother reports that the boy gets good grades and has no trouble concentrating at home when doing homework. Which information does the nurse give the patient and his mother about the medication he will be prescribed?