RRT RRT Mechanical Ventilation 3

Question 1

Which ventilator mode is most appropriate for a patient in early weaning who has some spontaneous effort?

Accepted Answer

Pressure Support Ventilation (PSV)

Answer

Assist-Control (A/C)

Answer

Controlled Mandatory Ventilation (CMV)

Answer

Apneustic ventilation

Question 2

What immediate action should be taken if a ventilated patient triggers a high-pressure alarm?

Accepted Answer

Manually ventilate with bag-mask and assess for cause (secretions, bronchospasm, pneumothorax)

Answer

Increase set tidal volume

Answer

Increase FiO2 to 100%

Answer

Administer a sedative

Question 3

What is the recommended head-of-bed elevation to reduce ventilator-associated pneumonia (VAP) risk?

Accepted Answer

30–45 degrees

Answer

0–15 degrees (supine)

Answer

60–90 degrees (upright)

Answer

Positioning has no effect on VAP

Question 4

A ventilated patient has PaCO2 of 55 mmHg and pH of 7.28. What ventilator change is most appropriate?

Accepted Answer

Increase respiratory rate or tidal volume to increase minute ventilation

Answer

Increase FiO2

Answer

Decrease PEEP

Answer

Decrease inspiratory time

Question 5

Which condition requires immediate needle decompression in a mechanically ventilated patient with sudden hemodynamic collapse?

Accepted Answer

Tension pneumothorax

Answer

Atelectasis

Answer

Pulmonary embolism

Answer

Right mainstem intubation

Question 6

What is the formula for calculating minute ventilation?

Accepted Answer

Respiratory rate × Tidal volume

Answer

Tidal volume × PEEP

Answer

Inspiratory time × Flow rate

Answer

FiO2 × PaCO2