Exam Preview for 2223: History and Theory of HFJV: How the Theory S

History and Theory of HFJV: How the Theory Supports the Application

Please note: exam questions are subject to change.

1. What is the optimal frequency range for high frequency ventilation in terms of resonant frequency? 0 - 1 Hz 1 - 3 Hz 4 - 8 Hz 10 - 12 Hz
2. What outcomes are typically achieved when using the resonant frequency range during high frequency ventilation? Improved blood gases and increased pressures Best blood gases and lowest pressures Worsened blood gases and increased pressures Best blood gases and highest pressures
3. According to the nature of flow, laminar flow is considered: Stable Unstable Transitional Trubulant
4. How does the described double-helical, bi-directional flow pattern benefit babies? It increases the risk of aspiration It increases the risk of airway obstruction It reduces lung compliance It improves gas exchange efficiency
5. Regarding the case history presented, how do the observed pH and PaCO2 levels after 2 hours and 10 minutes of HFJV compare to normal values? pH is lower and PaCO2 is higher than normal Both pH and PaCO2 are within normal range Only the PaCO2 is outside the normal range pH is higher and PaCO2 is lower than normal