TMC Mechanical Ventilation NEW 2025/ 2026
Update) Questions & Answers | Grade A| 100%
Correct (Verified Solutions)
A 57-year-old male patient is being mechanically ventilated following removal of his right upper
lobe. The chest radiograph shows right side consolidation. An arterial blood gas has been
obtained. Ventilatory data and blood gas results are:
Mode: VC, SIMV
FIO2: 1.0
Set rate: 20 br/min
Total rate: 20 br/min
VT: 450 mL
PIP: 55 cm H2O
PEEP: 18 cm H2O
pH: 7.41
PaCO2: 39 torr
PaO2: 43 torr
HCO3: 23 mEq/L
BE: 0 mEq/L
The respiratory therapist should recommend
A. independent lung ventilation.
B. inverse ratio ventilation.
,C. pressure support ventilation.
D. pressure control ventilation. - answer-:A.
Which of the following parameters are acceptable for weaning a patient from continuous
mechanical ventilation?
1. VD/VT: 65%
2. MIP: -18 cm H2O
3. Qs/Qt: 10%
4. A-aDO2: 12 torr (21% oxygen)
A. 3 & 4 only
B. 1 & 2 only
C. 1, 2 & 3 only
D. 1, 2, 3 & 4 - answer-:A.
A patient is receiving mechanical ventilation at the following settings:
Mode: VC, SIMV
Mandatory rate: 12 /min
Total rate: 12 /min
FIO2: 0.50
VT: 700 mL
Peak flow: 40 L/min
.PEEP: 5 cm H2O
The following scalar graphic is observed. Which of the following should the respiratory therapist
recommend?
A. Increase the PEEP
B. Change to pressure control mode
,C. Decrease the VT
D. Increase the peak flow - answer-:D.
A post-operative thoracotomy patient is receiving mechanical ventilation in the recovery room
with a tidal volume of 750 mL, SIMV mandatory rate 8/min, FIO2 of 0.40. Arterial blood gas
results show:
pH: 7.36
PaO2: 89 torr
PaCO2: 45 torr
SaO2: 95%
The patient is breathing fast and shallow. Based upon this information, the respiratory therapist
should recommend
A. repeating the arterial blood gas in 30 minutes.
B. increase SIMV mandatory rate to 10/min.
C. sedating the patient.
D. paralyzing the patient with pancuronium bromide (Pavulon). - answer-:A.
The respiratory therapist reviews the ventilator flow sheet for a post-op patient. The ventilator
settings have not been changed during the past 24 hours. The peak and plateau pressures were
recorded as follows: Increasing
This information would indicate that
A. airway resistance is increasing.
B. lung compliance is increasing.
C. the patient can begin weaning.
D. the PEEP should be increased. - answer-:D.
, A post-operative craniotomy patient is receiving mechanical ventilation and has an increased
intracranial pressure reading. The goals of mechanical ventilation for this patient include all of
the following EXCEPT
A. increased PaCO2.
B. keep airway pressure to a minimum.
C. hyperoxygenate.
D. use minimum PEEP levels. - answer-:A.
A 10-year-old child with muscular dystrophy is receiving non-invasive ventilation at an IPAP of
10 cm H2O and an EPAP of 5 cm H2O. The set rate is 15 br/min. with the following arterial blood
gases:
pH: 7.34
PCO2: 52 torr
PO2: 58 torr
HCO3-: 26 mEq/L
Which of the following should the respiratory therapist recommend?A. Switch to invasive
ventilation.
B. Decrease the set rate to 10 br/min.
C. Change the IPAP to 15 cm H2O.
D. Change the EPAP to 10 cm H2O. - answer-:C.
A newborn infant born at 26 weeks is exhibiting signs of respiratory distress including nasal
flaring and retractions. Physical examination reveals heart rate 180/min., respiratory rate
72/min., blood pressure 60/50 mm Hg. The chest radiograph indicates a reticulonodular
appearance. The respiratory therapist should recommend:
A. nasal CPAP at 10 cmH2O
B. assisted ventilation
C. 100% oxygen via hood
Update) Questions & Answers | Grade A| 100%
Correct (Verified Solutions)
A 57-year-old male patient is being mechanically ventilated following removal of his right upper
lobe. The chest radiograph shows right side consolidation. An arterial blood gas has been
obtained. Ventilatory data and blood gas results are:
Mode: VC, SIMV
FIO2: 1.0
Set rate: 20 br/min
Total rate: 20 br/min
VT: 450 mL
PIP: 55 cm H2O
PEEP: 18 cm H2O
pH: 7.41
PaCO2: 39 torr
PaO2: 43 torr
HCO3: 23 mEq/L
BE: 0 mEq/L
The respiratory therapist should recommend
A. independent lung ventilation.
B. inverse ratio ventilation.
,C. pressure support ventilation.
D. pressure control ventilation. - answer-:A.
Which of the following parameters are acceptable for weaning a patient from continuous
mechanical ventilation?
1. VD/VT: 65%
2. MIP: -18 cm H2O
3. Qs/Qt: 10%
4. A-aDO2: 12 torr (21% oxygen)
A. 3 & 4 only
B. 1 & 2 only
C. 1, 2 & 3 only
D. 1, 2, 3 & 4 - answer-:A.
A patient is receiving mechanical ventilation at the following settings:
Mode: VC, SIMV
Mandatory rate: 12 /min
Total rate: 12 /min
FIO2: 0.50
VT: 700 mL
Peak flow: 40 L/min
.PEEP: 5 cm H2O
The following scalar graphic is observed. Which of the following should the respiratory therapist
recommend?
A. Increase the PEEP
B. Change to pressure control mode
,C. Decrease the VT
D. Increase the peak flow - answer-:D.
A post-operative thoracotomy patient is receiving mechanical ventilation in the recovery room
with a tidal volume of 750 mL, SIMV mandatory rate 8/min, FIO2 of 0.40. Arterial blood gas
results show:
pH: 7.36
PaO2: 89 torr
PaCO2: 45 torr
SaO2: 95%
The patient is breathing fast and shallow. Based upon this information, the respiratory therapist
should recommend
A. repeating the arterial blood gas in 30 minutes.
B. increase SIMV mandatory rate to 10/min.
C. sedating the patient.
D. paralyzing the patient with pancuronium bromide (Pavulon). - answer-:A.
The respiratory therapist reviews the ventilator flow sheet for a post-op patient. The ventilator
settings have not been changed during the past 24 hours. The peak and plateau pressures were
recorded as follows: Increasing
This information would indicate that
A. airway resistance is increasing.
B. lung compliance is increasing.
C. the patient can begin weaning.
D. the PEEP should be increased. - answer-:D.
, A post-operative craniotomy patient is receiving mechanical ventilation and has an increased
intracranial pressure reading. The goals of mechanical ventilation for this patient include all of
the following EXCEPT
A. increased PaCO2.
B. keep airway pressure to a minimum.
C. hyperoxygenate.
D. use minimum PEEP levels. - answer-:A.
A 10-year-old child with muscular dystrophy is receiving non-invasive ventilation at an IPAP of
10 cm H2O and an EPAP of 5 cm H2O. The set rate is 15 br/min. with the following arterial blood
gases:
pH: 7.34
PCO2: 52 torr
PO2: 58 torr
HCO3-: 26 mEq/L
Which of the following should the respiratory therapist recommend?A. Switch to invasive
ventilation.
B. Decrease the set rate to 10 br/min.
C. Change the IPAP to 15 cm H2O.
D. Change the EPAP to 10 cm H2O. - answer-:C.
A newborn infant born at 26 weeks is exhibiting signs of respiratory distress including nasal
flaring and retractions. Physical examination reveals heart rate 180/min., respiratory rate
72/min., blood pressure 60/50 mm Hg. The chest radiograph indicates a reticulonodular
appearance. The respiratory therapist should recommend:
A. nasal CPAP at 10 cmH2O
B. assisted ventilation
C. 100% oxygen via hood
