What is the RECOMMENDED starting pressure for CPAP?

What is the RECOMMENDED starting pressure for CPAP?

• A. 4cmH2O
• B. 3cmH2O
• C. 6cmH2O
• D. 5cmH2O

Answer: (A)

Starting CPAP at 4 cmH2O provides a practical balance between comfort and effectiveness. This low enough level helps most patients tolerate the mask and reduces the risk of leaks or discomfort, while still offering enough airway splinting to begin lowering obstructive events in many adults with mild to moderate OSA. From this baseline, pressure can be titrated upward in small steps (as needed) to achieve an acceptable residual AHI and improved symptoms, without jumping to higher pressures that may cause arousals or intolerance. Starting too low may not control events, and starting too high can worsen comfort and adherence, so 4 cmH2O is a common, sensible default to begin titration.

Starting CPAP at 4 cmH2O provides a practical balance between comfort and effectiveness. This low enough level helps most patients tolerate the mask and reduces the risk of leaks or discomfort, while still offering enough airway splinting to begin lowering obstructive events in many adults with mild to moderate OSA. From this baseline, pressure can be titrated upward in small steps (as needed) to achieve an acceptable residual AHI and improved symptoms, without jumping to higher pressures that may cause arousals or intolerance. Starting too low may not control events, and starting too high can worsen comfort and adherence, so 4 cmH2O is a common, sensible default to begin titration.