A 72-year-old man with an elevated creatinine level.

A 39-year-old woman with one month of right upper quadrant pain.

A 28-year-old woman with abdominal pain and vomiting for the past six hours.

A 75-year-old man with worsening abdominal pain and emesis.

A 37-year-old man in a low-speed motor vehicle collision.

An 83-year-old man with chronic dysphagia and epigastric pain.

A 21-year-old woman with primary amenorrhea and pelvic pain.

A 38-year-old woman with hypertension, abdominal distension, and a history of chronic kidney disease.

A 33-year-old woman with vaginal bleeding and pelvic cramping and a beta human chorionic gonadotropin (hCG) level of 6,819.

A 71-year-old man with abdominal pain, fever, and diarrhea.

A 56-year-old man with alcohol abuse and hepatitis B now with liver failure.

A 49-year-old woman with prolonged vaginal bleeding and positive urine pregnancy test.

A 29-year-old man with subacute abdominal pain.

A 34-year-old woman with acute abdominal pain.

A 38-year-old woman with worsening fatigue and generalized abdominal pain.

A 59-year-old woman with waxing and waning diffuse epigastric pain.

A 30-year-old man with a history of prune belly syndrome and chronic kidney disease.

A 64-year-old man with postvoid dribbling and elevated prostate-specific antigen (PSA) levels.

A 20-year-old woman with shortness of breath and chest/abdominal pain.

A 30-year-old woman with a history of cognitive impairment and seizures now with enlarging renal lesions.