Which monitor is used to provide information about the patient's blood pressure?

A Non-invasive Blood Pressure Monitor (NIBP) is specifically designed to measure and display a patient's blood pressure. This type of monitor operates by inflating a cuff around the patient's arm or leg and then gradually deflating it while detecting the Korotkoff sounds to determine both systolic and diastolic pressures. The NIBP provides continuous and accurate blood pressure readings, which are essential for assessing a patient's hemodynamic status during anesthesia and surgery.

In contrast, other options do not focus on measuring blood pressure. An electrocardiogram (ECG) primarily monitors the electrical activity of the heart, providing insights into heart rhythms and potential cardiac issues but not blood pressure. A pulse oximeter measures oxygen saturation levels in the blood through the skin, which is critical for assessing respiratory function but does not provide any information about blood pressure. A capnometer measures the concentration of carbon dioxide in exhaled air, which is useful for monitoring ventilation but again does not relate to blood pressure measurement. Hence, among the options, the NIBP is uniquely suited for the task of monitoring blood pressure in patients.