What is the primary function of a CPAP/BiPAP machine?

The primary function of a CPAP (Continuous Positive Airway Pressure) or BiPAP (Bilevel Positive Airway Pressure) machine is to treat sleep apnea, a condition characterized by repeated interruptions in breathing during sleep. These devices deliver a steady stream of air to keep the airways open, preventing the collapse that can occur in individuals with obstructive sleep apnea. By maintaining open airways, CPAP/BiPAP machines help ensure consistent breathing throughout the night, which can significantly improve sleep quality and overall health outcomes for individuals affected by this condition.

In the context of the other choices, while pain relief, heart rate monitoring, and physical therapy might be relevant to different medical treatments and devices, they are not functions of the CPAP or BiPAP. These machines are specifically designed to address breathing issues related to sleep apnea rather than managing pain, monitoring cardiac function, or enhancing physical rehabilitation.