Which of the following is true of peripheral cyanosis?
a. Reliable indicator of tissue hypoxia.
b. Develops early in patients with anemia.
c. Develops late in patients with polycythe-mia.
d. Sign of inadequate tissue perfusion.
ANS: D
Cyanosis of the digits is referred to as peripheral cyanosis and is mainly the result of poor blood flow, especially in the extremities.
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