Question

Difference between cardiac and respiratory cyanosis in adults

Answer 1

Central cyanosis is often due to a circulatory or ventilatory problem that leads to poor blood oxygenation in thelungs. It develops when arterial oxygen saturation drops below 85% or 75%. Acute cyanosis can be as a result ofasphyxiation or choking, and is one ofthe definite signs that respiration isbeing blocked.

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