Step 1

Physiology 1

A 45-year-old man presents to the physician with a sore throat and fever for the past 3 days. of three days' duration. He also reports dyspnea on exertion and fatigue for the past three months and states that these have worsened over this time. Past medical history is unremarkable, and he does not take any prescription medications. Physical examination reveals tachycardia and scattered ecchymoses over the arms and legs.

Which of the following laboratory values would best illustrate the patient's red blood cell count?

  • A) Hematocrit
  • B) Mean corpuscular hemoglobin concentration (MCHC)
  • C) Mean corpuscular volume
  • D) Red cell distribution width
  • E) Total iron binding capacity


Dr. Ted O'Connell

Andrew Ford


Dr. Ted O'Connell