The patient with Raynaud’s phenomenon has received teaching on how to manage the disorder. Which statement by the patient indicates a need for further teaching?

A 41-year-old male complains of sudden onset of severe chest pain and describes it as a constant tearing sensation that radiates to his lower back. The nurse is most suspicious of which condition?

A patient presents to the emergency department with respiratory distress syndrome. The patient’s respiratory rate is 28 breaths per minute and oxygen saturation is 80% on room air. At the cellular level, the nurse knows which molecule is present in relative overabundance?