A 23-year-old male develops a black eye following a fight. When the aide asks the nurse why this occurred, the nurse's best response is that the bruising is due to an accumulation of:
a. transferrin.
b. bilirubin.
c. albumin.
d. hemosiderin.
ANS: D
Hemosiderin is responsible for the color changes in a black eye. Transferrin is a transport protein responsible for iron transport. Bilirubin is the normal, yellow-to-green pigment of bile derived from the porphyrin structure of hemoglobin. Albumin is the protein in the serum, responsible for cellular integrity.
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