- An 84-year-old man with gastroesophageal reflux disease, hypothyroidism, benign prostatic hyperplasia, chronic constipation, and acute myelogenous leukemia with myelodysplastic-related changes including chronic anemia, currently in remission, presented to the emergency department for the evaluation of an unwitnessed fall. The patient's wife had been in the adjoining room and reported hearing the patient fall and found him on the floor next to his chair at the kitchen table. She did not observe any abnormal or rhythmic movements.
- A 58-year-old man presented to the outpatient clinic for a general medical examination. He reported that he lived a healthy lifestyle and ran 5 mile/d without any symptoms. He had no known medical history and did not take any regular medications. His family history was notable for maternal death from heart failure of an undifferentiated cardiomyopathy at age 73 and a brother requiring coronary artery bypass graft surgery at age 50.
- A 75-year-old man presented to the emergency department with a 6-day history of dyspnea and substernal exertional chest pain with radiation to the jaw and left arm. He reported managing his chest pain with ibuprofen, but the chest pain continued, which prompted him to present for further evaluation.
- A 27-year-old woman pregnant at 17 weeks presented to the emergency department for evaluation of cough productive of scant hemoptysis, subjective fevers, and progressive fatigue. Two weeks before symptom onset she had been in her usual state of health without any chronic medical conditions. She reported symptom progression over 2 weeks with the development of exertional dyspnea and lower extremity edema in the 72 hours leading to presentation. She did volunteer a history of intravenous (IV) drug use over 1 year ago and recent alcohol use before becoming aware of her pregnancy.