Cyanosis (blue lips and tongue) indicates what condition?

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Prepare for the NEBDN Dental Nursing Medical Emergencies Test. Study with interactive questions, detailed hints, and comprehensive explanations to excel in your dental nursing exam.

Multiple Choice

Cyanosis (blue lips and tongue) indicates what condition?

Explanation:
Cyanosis shows that there isn’t enough oxygen in the arterial blood. The blue tint comes from increased deoxygenated hemoglobin in the blood, which becomes visible in areas like the lips and tongue when oxygenation is poor. This is a sign of hypoxemia and indicates a potential airway, breathing, or circulatory problem needing urgent assessment and often supplemental oxygen. It is not caused by dehydration and does not reflect normal oxygenation or excess oxygen (hyperoxia).

Cyanosis shows that there isn’t enough oxygen in the arterial blood. The blue tint comes from increased deoxygenated hemoglobin in the blood, which becomes visible in areas like the lips and tongue when oxygenation is poor. This is a sign of hypoxemia and indicates a potential airway, breathing, or circulatory problem needing urgent assessment and often supplemental oxygen. It is not caused by dehydration and does not reflect normal oxygenation or excess oxygen (hyperoxia).

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