Final answer:
A capnograph or capnometer measures end-tidal carbon dioxide (EtCO2), not blood pressure, oxygen saturation, or cardiac activity, which are measured by other devices such as sphygmomanometers, pulse oximeters, and EKGs.
Step-by-step explanation:
A capnograph or capnometer is a device used in the medical field to measure end-tidal carbon dioxide (EtCO2). It is not used to measure blood pressure, monitor oxygen saturation, or record cardiac activity; these functions are performed by other devices such as sphygmomanometers, pulse oximeters, and electrocardiograms (EKG), respectively. The capnograph is an essential tool in monitoring a patient's respiratory status, particularly during anesthesia and intensive care, as it provides information about the patient's ventilatory status and can indicate various states such as hypoventilation or hyperventilation.
Relevant Medical Devices:
A pulse oximeter measures the amount of oxygen in the blood and can indicate metabolic rate and potential medical conditions.
A sphygmomanometer is used to measure blood pressure using an inflatable cuff and pressure meter.
An electrocardiogram (EKG) machine is used to record the heart's electrical activity.