A 59-year-old man with penile pain and persistent erection for one week.

A 64-year-old man with acute abdominal pain, nausea, and vomiting.

A 41-year-old woman with left lower quadrant abdominal pain, nausea, and vomiting.

A 39-year-old woman with right leg pain and calf swelling and edema.

A 50-year-old man with abdominal pain and fever for the past 24 hours.

An 84-year-old woman presents with abdominal pain.

A 49-year-old woman presents with a severe headache.

A 48-year-old man with worsening confusion, lethargy, and garbled speech.

A 23-year-old woman with midfoot pain after a motor vehicle collision.

A 51-year-old-woman with fever, cough, and severe neurological deficits.

A 39-year-old woman with hypertension and new-onset seizures.

A 71-year-old man with sudden, severe nausea, vomiting, and epigastric pain after eating.

A 20-year-old man with quadriplegia and urinary incontinence after car accident.

A 45-year-old man with intermittent shortness of breath for the past few days.

A 57-year-old woman with a history of chronic pancreatitis and cirrhosis presents with gastrointestinal bleeding.

A 61-year-old man with a history of metastatic adenocarcinoma of the distal esophagus with new-onset shortness of breath and chest pain.

A 52-year-old man struck by an automobile while crossing the street.

A 55-year-old woman presents after a syncopal episode after initiation of a therapeutic epidural injection.

A 71-year-old woman with hematuria and left flank pain.

A 27-year-old man undergoing imaging after a motor vehicle accident.