Which SpO2 change is required for central apnea scoring?

Which SpO2 change is required for central apnea scoring?

• A. 3%
• B. 2%
• C. There is no required decrease in SpO2
• D. 4%

Answer: (C)

For central apnea scoring, what matters is the presence or absence of respiratory effort and airflow, not a drop in oxygen saturation. A central apnea is identified when both airflow and respiratory effort disappear for at least 10 seconds, indicating a lack of drive to breathe. SpO2 changes are not part of the definition and there is no required desaturation to label an event as central. If desaturation does occur, it can be recorded separately, but it does not define the central apnea itself. This is why the correct understanding is that there is no required decrease in SpO2 for central apnea scoring.

For central apnea scoring, what matters is the presence or absence of respiratory effort and airflow, not a drop in oxygen saturation. A central apnea is identified when both airflow and respiratory effort disappear for at least 10 seconds, indicating a lack of drive to breathe. SpO2 changes are not part of the definition and there is no required desaturation to label an event as central. If desaturation does occur, it can be recorded separately, but it does not define the central apnea itself. This is why the correct understanding is that there is no required decrease in SpO2 for central apnea scoring.