FP-C Ventilator Management and Respiratory Support 2

Question 1

Auto-PEEP (intrinsic PEEP) in a mechanically ventilated patient is best described as:

Accepted Answer

Air trapping due to incomplete exhalation before the next breath

Answer

A deliberate PEEP increase to improve oxygenation

Answer

The difference between set PEEP and measured airway pressure

Answer

High plateau pressure caused by low compliance

Question 2

A patient with severe asthma is intubated and mechanically ventilated. SpO2 is 94% but bilateral breath sounds are absent. Ventilator shows high peak pressures. The FIRST action should be:

Accepted Answer

Disconnect from the ventilator and manually bag slowly

Answer

Increase PEEP to recruit alveoli

Answer

Administer IV furosemide for pulmonary edema

Answer

Increase FiO2 to 1.0

Question 3

A high-pressure alarm is triggered on the transport ventilator. Which of the following is the LEAST likely cause?

Accepted Answer

ETT cuff deflation

Answer

Endotracheal tube kinking

Answer

Right mainstem intubation

Answer

Patient biting the tube

Question 4

Permissive hypercapnia during mechanical ventilation is defined as intentionally allowing PaCO2 to rise above normal in order to:

Accepted Answer

Minimize tidal volumes and ventilator-induced lung injury

Answer

Improve oxygenation by shifting the oxyhemoglobin curve

Answer

Reduce the need for sedation during transport

Answer

Increase respiratory drive in spontaneously breathing patients

Question 5

Patient-ventilator dyssynchrony during transport is BEST identified by:

Accepted Answer

Observation of patient effort against the ventilator and irregular waveforms

Answer

Consistently low SpO2 despite high FiO2

Answer

High end-tidal CO2 readings

Answer

Decreasing mean arterial pressure

Question 6

When transporting a ventilated patient with suspected ARDS, which ventilator strategy is supported by evidence to reduce mortality?

Accepted Answer

Low tidal volumes (6 mL/kg IBW) with adequate PEEP

Answer

High tidal volumes (10-12 mL/kg IBW) with low PEEP

Answer

Pressure support ventilation without PEEP

Answer

Inverse I:E ratio ventilation with no PEEP

Question 7

A transport ventilator's low-minute-volume alarm activates. Which assessment finding is MOST consistent with this alarm?

Accepted Answer

Increased end-tidal CO2 and decreased tidal volume delivery

Answer

Decreased end-tidal CO2 and increased respiratory rate

Answer

High peak inspiratory pressures with full tidal volumes

Answer

Improved SpO2 and reduced work of breathing