Final answer:
The sensor that can be attached directly to a ventilator circuit at the ET tube is a capnography sensor, which measures exhaled CO2 levels.
Step-by-step explanation:
The correct answer is that the type of sensor which can be placed directly onto the ventilator circuit, usually attached to an adaptor on the Endotracheal (ET) tube, is a capnography sensor or capnograph.
Capnography sensors are commonly used to measure the concentration of carbon dioxide (CO2) in the exhaled air of a patient receiving mechanical ventilation.
This measurement is essential for monitoring the patient's ventilatory status, ensuring appropriate gas exchange, and adjusting ventilator settings if necessary.
The capnograph provides a real-time assessment of CO2 levels throughout the respiratory cycle, often represented as a waveform, and can alert healthcare professionals to changes in the patient's condition.
The correct answer is option Pressure sensor. It can be placed directly onto the ventilator circuit, usually attached to an adaptor on the ET tube.