In rate-modulated pacing, the pacing rate is determined by a physiologic parameter other than atrial rate and is measured by a special sensor in the pacemaker or pacing lead. The most commonly used physiologic parameter in rate-modulated pacemakers is:
A. QT interval.
B. Venous blood temperature.
C. Mixed venous oxygen saturation.
D. Body motion.
Answer:D
In rate-modulated pacing, the pacing rate is determined by a physiologic parameter other than atrial rate and is measured by a special sensor in the pacemaker or pacing lead. The most commonly used physiologic parameter in rate-modulated pacemakers is:
A. QT interval. B. Venous blood temperature. C. Mixed venous oxygen saturation. D. Body motion.