mechanical ventilation exam 2024 with
verified answers
force x distance = - ANSWER: ✔✔work
pressure change X volume change is the function of ? - ANSWER: ✔✔work
PSV - ANSWER: ✔✔often used in conjunction with IMV, but can be used as a primary mode of
ventilation
With PSV patient dictates? - ANSWER: ✔✔F, IFR, TI, VT
Clinician sets what in PSV - ANSWER: ✔✔Pressure support level, Trigger sensitivity, Optimal elevated
baseline pressure (CPAP)
With PSV Every breath is? - ANSWER: ✔✔patient triggered, pressure-limited, and flow-cycled
↑PSV →↑VT → =? - ANSWER: ✔✔↓WOB
↓PSV→↓VT→ =? - ANSWER: ✔✔↑WOB or acceptable WOB
Weaning PSV - ANSWER: ✔✔drop pressure 2-4 cm H20
at a PSV of 5-8 cm H2O - ANSWER: ✔✔extubation is possible
Volume Support - ANSWER: ✔✔•Form of PC ventilation with adaptive breath targeting
Volume support (VS) - ANSWER: ✔✔•PSV with a targeted VT•
, VS mechanism of action - ANSWER: ✔✔•Initially, a test pulse at 10 cm H20 above PEEP is delivered
•Compliance and exhaled VT are measured
•Automatic adjustment of PS level or ¯ on a breath-to-breath basis to achieve targeted VT
Volume-Support Ventilation (VSV) - ANSWER: ✔✔Spontaneous mode
•Every breath
•Patient-triggered
•Pressure-limited
•Flow-cycled•Flow-cycled
PRVC (pressure regulated volume control) vent names - ANSWER: ✔✔•Servo-i, Servo u, Yvaire AVEA
•Adaptive targeting scheme "APC" does what? - ANSWER: ✔✔Auto adjusts pressure between breaths
to reach targeted VT in response to varying patient conditions
•Mechanism of action with Servos - ANSWER: ✔✔•Test breath VT is delivered with inspiratory hold and
Pplat is assessed
•Measure Pplat is given for next breath
•Exhaled VT is compared to target VT
•Inspiratory pressure is regulated to provide clinician set VT from breath-to-breath
PRVC Volume-Targeted Pressure Controlled Breaths - ANSWER: ✔✔•Delivered VT is measured and
compared with target VT
•PC gradually or ¯ until target VT is reached
•+- 3 cm H20 increments
•Provides stable VT with changes in compliance, resistance, pt effort
PRVC Patient-triggered or Time-triggered Breaths - ANSWER: ✔✔•A/C or IMV breaths
•Assisted if triggered by patient
verified answers
force x distance = - ANSWER: ✔✔work
pressure change X volume change is the function of ? - ANSWER: ✔✔work
PSV - ANSWER: ✔✔often used in conjunction with IMV, but can be used as a primary mode of
ventilation
With PSV patient dictates? - ANSWER: ✔✔F, IFR, TI, VT
Clinician sets what in PSV - ANSWER: ✔✔Pressure support level, Trigger sensitivity, Optimal elevated
baseline pressure (CPAP)
With PSV Every breath is? - ANSWER: ✔✔patient triggered, pressure-limited, and flow-cycled
↑PSV →↑VT → =? - ANSWER: ✔✔↓WOB
↓PSV→↓VT→ =? - ANSWER: ✔✔↑WOB or acceptable WOB
Weaning PSV - ANSWER: ✔✔drop pressure 2-4 cm H20
at a PSV of 5-8 cm H2O - ANSWER: ✔✔extubation is possible
Volume Support - ANSWER: ✔✔•Form of PC ventilation with adaptive breath targeting
Volume support (VS) - ANSWER: ✔✔•PSV with a targeted VT•
, VS mechanism of action - ANSWER: ✔✔•Initially, a test pulse at 10 cm H20 above PEEP is delivered
•Compliance and exhaled VT are measured
•Automatic adjustment of PS level or ¯ on a breath-to-breath basis to achieve targeted VT
Volume-Support Ventilation (VSV) - ANSWER: ✔✔Spontaneous mode
•Every breath
•Patient-triggered
•Pressure-limited
•Flow-cycled•Flow-cycled
PRVC (pressure regulated volume control) vent names - ANSWER: ✔✔•Servo-i, Servo u, Yvaire AVEA
•Adaptive targeting scheme "APC" does what? - ANSWER: ✔✔Auto adjusts pressure between breaths
to reach targeted VT in response to varying patient conditions
•Mechanism of action with Servos - ANSWER: ✔✔•Test breath VT is delivered with inspiratory hold and
Pplat is assessed
•Measure Pplat is given for next breath
•Exhaled VT is compared to target VT
•Inspiratory pressure is regulated to provide clinician set VT from breath-to-breath
PRVC Volume-Targeted Pressure Controlled Breaths - ANSWER: ✔✔•Delivered VT is measured and
compared with target VT
•PC gradually or ¯ until target VT is reached
•+- 3 cm H20 increments
•Provides stable VT with changes in compliance, resistance, pt effort
PRVC Patient-triggered or Time-triggered Breaths - ANSWER: ✔✔•A/C or IMV breaths
•Assisted if triggered by patient
