A CPAP titration polysomnogram is performed to:
a. find the maximum CPAP level for the functional residual capacity.
b. determine the lowest possible CPAP level.
c. find the CPAP level to maintain an open airway.
d. determine the pressure needed for negative-pressure ventilation.
C
A CPAP titration polysomnogram is performed to find the CPAP level to maintain an open airway. The CPAP is delivered to the patient through a nasal (or full face) mask. If the CPAP level is too low, the airway will tend to still collapse. Too high a CPAP level puts unnecessary pressure on the lungs and heart. The CPAP level is not used to set the pressure for negative-pressure ventilation.
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