A 25-year-old man with chest and abdominal pain and difficulty swallowing after lye ingestion.

A 40-year-old man with abdominal pain, intolerance to oral intake, and vomiting.

A 68-year-old woman with atraumatic, severe right hip pain.

An 83-year-old man with coronary artery disease and a prior transient ischemic attack.

A 31-year-old man with right knee pain that began while training for a marathon six months ago.

A 64-year-old woman with left shoulder pain with associated swelling.

A 19-year-old woman with diffuse lower abdominal and pelvic pain.

A 78-year-old man with a chronic cough that has worsened in the past few months.

A 20-year-old woman with abnormal uterine bleeding and worsening diffuse lower abdominal pain that started three days ago.

A 27-year-old man with acute right leg weakness and right buttock pain.

A 23-year-old man with acute neck pain after being hit with a lacrosse ball.

A 77-year-old man with several hours of acute-onset epigastric pain.

A 25-year-old woman with right upper abdominal pain, nausea, and vomiting.

A 55-year-old man with a slowly enlarging, painless mass in his left calf.

An 89-year-old woman with new-onset atrial fibrillation.

A 70-year-old man with newly diagnosed prostate cancer.

A 46-year-old man found down at home.

A 53-year-old man with nonspecific abdominal pain.

A 30-year-old woman with low-back pain following spontaneous vaginal delivery.

A 64-year-old man with prior prostate cancer.