A respiratory therapist is evaluating an x-ray of a patient suffering from congestive heart failure. What might the therapist observe when examining the hilum of this patient?

Paroxysmal nocturnal hemoglobinuria has four basic disease mechanisms: hyperhemolysis, venous thrombosis, infection, and bone marrow hypoplasia. Which of these mechanisms is the most severe complication?

a. Hyperhemolysis b. Infection c. Venous thrombosis d. Bone marrow hypoplasia

The specialty area of medicine that involves the care of children up to the age of 18, or in some cases 21, is ________.

Fill in the blank(s) with the appropriate word(s).