Abstract
A 62-year-old man is admitted with fever, cough, and dyspnea. He is weak, appears to be dehydrated, and has purulent sputum. His temperature is 39.2°C, respirations 22, and blood pressure 128/69 mm Hg. There are crackles over the left lower lung field, and chest radiography shows a density in the left lower lobe that is consistent with pneumonia. Should thromboprophylaxis be provided? If so, in what form?