701 Week 6 - Ventilators, Waveforms, & Loops

Which mode of ventilation allows spontaneous breathing by the patient while providing a backup respiratory rate?

Your patient is in the trendelenburg position. You notice that the PEEP is set at 0 cm H2O. Increasing the PEEP would:

During a surgical procedure, the low-pressure alarm on the ventilator is triggered. What should you do first?

During a procedure, the high-pressure alarm on the anesthesia ventilator activates. This alarm most likely indicates:

Which mode allows you to set a backup rate, pressure support, and ability for patient to initiate spontaneous breaths?

When managing a patient with COPD, which ventilator setting adjustment is most beneficial?

What type of alarm detects disconnect or loose connections in an anesthesia ventilator?

In a scenario where your machine doesn't have FGF decoupling, and your TV appears to be delivering more. What do you do?

A flow volume loop shows a reduced maximal inspiratory and expiratory flow across all lung volumes, with a low TLC. Why?

You notice the anesthesia machine uses descending bellows. What is a potential drawback of this design?

You are using a ventilator without FGF decoupling & increase the FGF to manage a rising CO2 level. What will occur?

What is the significance of the Peak Inspiratory Pressure (PIP) in mechanical ventilation?

You observe an increase in peak airway pressure during a case. Which adjustment is least likely to be beneficial?

The vent has an I:E ratio of 1:1. What does this mean?

You observe a significant right shift in the flow-volume loop during the thoracic surgery. This is most likely due to:

On a pressure-volume loop, you notice a significant shift towards higher pressures without an increase in volume. Why?

The vent's high-pressure alarm is frequently triggered. No kinks or circuit issues are identified. What is going on?

In the context of anesthesia ventilators, what does FGF stand for, and what is its significance?

You see a sudden increase in peak airway pressure above the high-pressure alarm limit. What should you do first?

Which of the following statements best describes the advantage of using a piston-driven ventilator?

You notice this flow-volume loop. What adjustment can be made to mitigate this issue?

What ventilator mode is displayed?

You observe a flow volume loop that demonstrates a decreased expiratory flow but normal inspiratory flow. What is it?

What is the primary function of an anesthesia ventilator?

The ascending bellow of the anesthesia ventilator fails to fully expand during exhalation. What is the cause?

Which ventilation mode would be most appropriate for an ARDS pt to maximize oxygenation while minimizing barotrauma?

You are delivering 1 L/min of O2 and 3 L/min of air to the patient. What is the FiO2 the patient is receiving?

What approach best aligns with the "lung-protective" ventilation strategy to reduce the risk of postop lung issues?

What ventilator mode is displayed?

Which condition is NOT associated with an increase in both PIP and plateau pressure?

A patient shows an increasing peak inspiratory pressure with a normal plateau pressure. What is the most likely cause?

What is the primary benefit of fresh gas flow decoupling in modern anesthesia machines?

A patient on mechanical ventilation shows a "shark fin" pattern on the capnography waveform. This is indicative of:

Your patient has a EtCO2 of 80. The I:E ratio is set to 1:1. To improve CO2 elimination, what should you do?

The vent has an I:E ratio of 1:2. What does this mean?

A patient with ARDS on volume control ventilation is showing signs of barotrauma. To minimize the risk of lung injury:

While in VC mode, you notice that the delivered TV are significantly lower than the set TV. All could be reasons EXCEPT:

In pressure control ventilation, what happens to the tidal volumes if the airway resistance increases?