Which of the following devices helps in monitoring patient ventilation status?

The pulse oximeter is a device that is specifically designed to monitor the ventilation status of patients by measuring the oxygen saturation levels in their blood. It provides critical information regarding the effectiveness of ventilation and respiratory function, helping healthcare providers assess whether a patient is receiving adequate oxygen or if there is a need for intervention.

In contrast, a cardiac monitor mainly tracks heart rhythms and cardiac activity, making it essential for cardiovascular assessment rather than ventilation status. An infusion pump is used for delivering medications or fluids intravenously and does not provide information on respiratory or ventilation parameters. A suction device is utilized to clear secretions from the airways but does not monitor or assess ventilation levels in patients.