A patient presents to the emergency department with difficulty breathing, a cough that produces frothy pink sputum, and an S3 gallop upon auscultation. A chest X-ray reveals pulmonary edema. Which initial treatment should the nurse anticipate administering to best manage this patient's condition?
Intravenous diuretics
Sublingual nitroglycerin
Intravenous morphine
Inhalation of a short-acting beta-agonist