A physician has diagnosed a patient with purpura. After leaving the room, a nursing student asks the nurse what the physician saw that led to that diagnosis. The nurse should say, "The physician is referring to the:
a. "Blue dilation of blood vessels in a star-shaped linear pattern on the legs."
b. "Fiery red, star-shaped marking on the cheek that has a solid circular center."
c. "Confluent and extensive patch of petechiae and ecchymoses on the feet."
d. "Tiny areas of hemorrhage that are less than 2 mm, round, discrete, and dark red in color."
ANS: C
Purpura is a confluent and extensive patch of petechiae and ecchymoses and a flat macular hemorrhage observed in generalized disorders such as thrombocytopenia and scurvy. The blue dilation of blood vessels in a star-shaped linear pattern on the legs describes a venous lake. The fiery red, star-shaped marking on the cheek that has a solid circular center describes a spider or star angioma. The tiny areas of hemorrhage that are less than 2 mm, round, discrete, and dark red in color describes petechiae.
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