Recognising cyanosis

Cyanosis provides a visual indication of reduced blood oxygen saturation (SpO₂) and can be used to estimate oxygen levels when monitoring equipment is unavailable.

Cyanosis Indicators

• No Cyanosis – Approximately 100% SpO₂
• Slight Cyanosis – Below 90% SpO₂
• Mild Cyanosis – Below 70% SpO₂
• Severe Cyanosis – Below 50% SpO₂

Treatment Considerations

• Mild cyanosis indicates significantly reduced oxygen saturation and should prompt assessment of airway and breathing conditions.
• Priority should be given to restoring and maintaining a clear airway.
• Severe cyanosis indicates critically low oxygen saturation and an immediate risk to life.
• Immediate intervention is required to restore oxygenation and prevent death.