Airway & Ventilation第 13 / 100 题
Cyanosis (bluish skin, lips, or nail beds) is a sign of:
a.Inadequate oxygenation
b.Excellent perfusion
c.Hyperventilation only
d.Normal skin in cold weather with no clinical concern
解析
Cyanosis reflects poor oxygenation of the blood and is a late, serious sign of hypoxia. It requires immediate airway management and oxygen therapy.
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