TMC Mechanical Ventilation
2026 Exam Questions and
Correct Answers | New Update
Trigger Variable - 🧠ANSWER ✔✔the parameter that starts the inspiratory
phase of a positive pressure breath
Pressure trigger - 🧠ANSWER ✔✔Inspiration initiated when pt breathes in
Flow trigger - 🧠ANSWER ✔✔inspiration is initiated by the patient causing
inspiratory flow to drop below the established baseline
,Volume trigger - 🧠ANSWER ✔✔inspiration is initiated by the patient when
the ventilator detects a small change in volume in the patients circuit during
exhalation
Time trigger - 🧠ANSWER ✔✔inspiration is initiated by the ventilator
Manual trigger - 🧠ANSWER ✔✔therapist presses button to manually initiate
breathe
volume cycle - 🧠ANSWER ✔✔Pressure is applied to the airways until a
preset volume is delivered
- Advantage: minute volume will remain constant to provide stable blood
gases
- Disadvantage: as lung compliance or airway resistance worsen:
1. PIP and Plat increase
2. May result in barotrauma or volutrauma
pressure cycle - 🧠ANSWER ✔✔positive pressure is applied until preset
pressure is reached
,although pressure will remain constant the volume remain the volume will
change as the patients lung compliance and/or airway resistance change
tidal volume maybe adjusted by increasing or decreasing the pressure
used as the cycling variable during IPPB
Time cycled - 🧠ANSWER ✔✔used on babies
Apply positive pressure until a preset time is reached.
PIP is usually controlled at a set level
VT is adjusted by increasing or decreasing the peak inspiratory pressure
Flow cycle - 🧠ANSWER ✔✔positive pressure is applied to the airway until a
predetermine flow is achieved
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, pressure, volume, and inspiratory time may vary with changes in the pt lung
compliance and/or airway resistance
normal cycling mechanism in PSV
typical ventilator circuit includes - 🧠ANSWER ✔✔- inspiratory limb
- expiratory limb
- WYE adaptor
- nebulizer (optional)
- humidifier
ventilator circuit should not be changed on a regular basis unless -
🧠ANSWER ✔✔circuit is grossly contaminated
malfunctioning
the pt should be off the ventilator for the shortest possible amount of time
when - 🧠ANSWER ✔✔manual ventilation with a resuscitation bag will be
necessary while the new circuit is attached and tested by another person
(on a test lung)
2026 Exam Questions and
Correct Answers | New Update
Trigger Variable - 🧠ANSWER ✔✔the parameter that starts the inspiratory
phase of a positive pressure breath
Pressure trigger - 🧠ANSWER ✔✔Inspiration initiated when pt breathes in
Flow trigger - 🧠ANSWER ✔✔inspiration is initiated by the patient causing
inspiratory flow to drop below the established baseline
,Volume trigger - 🧠ANSWER ✔✔inspiration is initiated by the patient when
the ventilator detects a small change in volume in the patients circuit during
exhalation
Time trigger - 🧠ANSWER ✔✔inspiration is initiated by the ventilator
Manual trigger - 🧠ANSWER ✔✔therapist presses button to manually initiate
breathe
volume cycle - 🧠ANSWER ✔✔Pressure is applied to the airways until a
preset volume is delivered
- Advantage: minute volume will remain constant to provide stable blood
gases
- Disadvantage: as lung compliance or airway resistance worsen:
1. PIP and Plat increase
2. May result in barotrauma or volutrauma
pressure cycle - 🧠ANSWER ✔✔positive pressure is applied until preset
pressure is reached
,although pressure will remain constant the volume remain the volume will
change as the patients lung compliance and/or airway resistance change
tidal volume maybe adjusted by increasing or decreasing the pressure
used as the cycling variable during IPPB
Time cycled - 🧠ANSWER ✔✔used on babies
Apply positive pressure until a preset time is reached.
PIP is usually controlled at a set level
VT is adjusted by increasing or decreasing the peak inspiratory pressure
Flow cycle - 🧠ANSWER ✔✔positive pressure is applied to the airway until a
predetermine flow is achieved
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, pressure, volume, and inspiratory time may vary with changes in the pt lung
compliance and/or airway resistance
normal cycling mechanism in PSV
typical ventilator circuit includes - 🧠ANSWER ✔✔- inspiratory limb
- expiratory limb
- WYE adaptor
- nebulizer (optional)
- humidifier
ventilator circuit should not be changed on a regular basis unless -
🧠ANSWER ✔✔circuit is grossly contaminated
malfunctioning
the pt should be off the ventilator for the shortest possible amount of time
when - 🧠ANSWER ✔✔manual ventilation with a resuscitation bag will be
necessary while the new circuit is attached and tested by another person
(on a test lung)
