When applying supplemental oxygen to a CPAP titration study, the setting at which the oxygen should be started is:

When applying supplemental oxygen to a CPAP titration study, the setting at which the oxygen should be started is:

• A. 1 L/min
• B. 2 L/min
• C. 3 L/min
• D. 5 L/min

Answer: (A)

Starting supplemental oxygen at 1 L/min during a CPAP titration is chosen to improve oxygenation without noticeably altering the CPAP titration dynamics. The idea is to raise FiO2 enough to prevent desaturation while keeping the CPAP pressure determination unaffected. If desaturation persists, oxygen can be titrated upward in small steps, but beginning at 1 L/min helps avoid masking underlying issues or causing CO2 retention in at-risk patients.

Starting supplemental oxygen at 1 L/min during a CPAP titration is chosen to improve oxygenation without noticeably altering the CPAP titration dynamics. The idea is to raise FiO2 enough to prevent desaturation while keeping the CPAP pressure determination unaffected. If desaturation persists, oxygen can be titrated upward in small steps, but beginning at 1 L/min helps avoid masking underlying issues or causing CO2 retention in at-risk patients.