A 76-year-old man comes to the emergency department because of a 12 hour history of fever and left lower quadrant abdominal pain

A six-year-old boy is brought to the physician by his parents because of a three day history of fever, headache, and cough productive of a green, foul smelling discharge that also exits from his nose

A 68-year-old woman has the sudden onset of weakness in her right arm and leg

A 15-year-old girl is brought to the physician by her mother because of an eight month history of fatigue

An 18-year-old female athlete reports easy fatiguability and weakness

A previously healthy 32-year-old woman who works as a nurse comes to the emergency department because of a three-week history of episodes of dizziness, nausea, and profuse sweating that resolve with eating

Hey 74-year-old man comes to the physician for a follow-up examination. He has a three month history of severe pain and swelling of the metacarpophalangeal joints, wrists elbows and knees

Hospital discharge of a 75-year-old man is delayed due to unavailability of a bed in a nursing home

A 24-year-old primigravid women at 28 weeks gestation has had nagging headaches a puffy looking face and swollen legs for the past week

A five-year-old girl is brought to the emergency department because of fever and severe abdominal pain