Certified Polysomnographic Technician (CPSGT) Practice Exam 2025 - Free CPSGT Practice Questions and Study Guide

Sleep apnea significantly impacts cardiovascular health, primarily through mechanisms that induce and exacerbate systemic stress on the heart and vascular system. When the airway becomes obstructed during sleep, it results in intermittent pauses in breathing. This hypoxia (lack of oxygen) triggers a series of physiological responses, including increased sympathetic nervous system activity, which can lead to elevated blood pressure and stress on the heart.

As a consequence of these repeated episodes of hypoxia and hypercapnia (excess carbon dioxide in the blood), there is a heightened risk of developing hypertension. Persistent high blood pressure is a well-known risk factor for heart disease. Furthermore, sleep apnea can lead to arrhythmias, which are irregular heartbeats that can potentially lead to more serious cardiovascular issues. Overall, individuals with sleep apnea are at a significantly increased risk for developing heart disease, including conditions such as coronary artery disease and heart failure, due to these cumulative effects on heart function and vascular health.