FFICM FFICM Critical Care Monitoring and Hemodynamics 2

Question 1

Which ventilator mode delivers a set tidal volume regardless of airway resistance or compliance?

Accepted Answer

Volume-controlled ventilation

Answer

Volume-controlled ventilation (VCV) delivers a preset tidal volume with each breath, with airway pressure varying based on lung mechanics.

Question 2

What is the recommended tidal volume per kilogram of ideal body weight in ARDS lung-protective ventilation?

Accepted Answer

6 mL/kg IBW

Answer

The ARDSNet trial established 6 mL/kg ideal body weight as the lung-protective tidal volume to reduce ventilator-induced lung injury.

Question 3

Which condition is a contraindication to prone positioning in mechanically ventilated ARDS patients?

Accepted Answer

Unstable spinal fracture

Answer

Unstable spinal fractures are an absolute contraindication to prone positioning due to the risk of spinal cord injury during turning.

Question 4

What does intrinsic PEEP (auto-PEEP) result from in mechanically ventilated patients?

Accepted Answer

Incomplete exhalation before the next breath

Answer

Auto-PEEP occurs when the expiratory time is insufficient for complete lung emptying, trapping air and creating inadvertent positive end-expiratory pressure.

Question 5

Which index is used to assess weaning readiness and is calculated as respiratory rate divided by tidal volume in liters?

Accepted Answer

Rapid shallow breathing index (RSBI)

Answer

The Rapid Shallow Breathing Index (RSBI = f/VT) predicts weaning failure when >105 breaths/min/L, as validated by Yang and Tobin.

(FFICM) Final Faculty of Intensive Care Medicine Practice Test

(FFICM) Final Faculty of Intensive Care Medicine Practice Test

FFICM FFICM Critical Care Monitoring and Hemodynamics 2