Patients with which characteristics are at increased risk for infective endocarditis? Select all that apply.

The patient is brought to the emergency department (ED) after being found on the floor in the garage by his wife. His right cheek balloons with each expiration and his right leg drags when he walks. While being assisted to the magnetic resonance imaging suite, the patient’s facial drooping resolves and he no longer walks with a limp. Which action does the nurse take first?

A teenager collapsed in the heat following a particularly strenuous football practice. Upon presentation to the emergency department, the patient complains of severe muscle pain and weakness. Rhabdomyolysis is suspected. Which of the following laboratory tests will confirm the diagnosis because it is the most sensitive and specific?