Exam 45: Mechanical Ventilators

Which of the following types of ventilators would you select for use during an MRI procedure? 1) Electronically controlled 2) Pneumatically controlled 3) Fluidically controlled 4) Electrically controlled

When using pressure as the trigger variable, where do you typically set the trigger level?

A patient is receiving continuous mandatory ventilation in the control mode at a rate of 15/min. The expiratory time is 2.9 sec. What is the inspiratory time?

Primary drive mechanisms used by modern ventilators include which of the following? 1) Compressed gas or reducing valve 2) Hydraulic or fluidic compressor 3) Electrical motor or compressor

Which of the closed-loop controllers is used by all ventilators?

You observe that a ventilator reaches a preset pressure early in inspiration but holds it for a specific time, after which inspiration ends. What mode of ventilatory support is in force?

Flow serves as a limit variable whenever a ventilator controls what?

What is the name of a breath where a patient is able to change the inspiratory time?

Which of the following provides clinicians with measured or calculated date related to ventilatory support over time?

A patient is receiving continuous mandatory ventilation in the control mode at a rate of 15/min. The inspiratory time is 0.8 sec. What is the expiratory time?