TMC Mock Exam 100% Correct Questions and
Answers SOLUTION 2025/2026
Which of the following situations would result in the high-pressure alarm being activated
during volume-controlled ventilation?
1 Leak in the circuit
2 Patient disconnected from the ventilator
3 Patient coughing
4 Water in the tubing . (-correct answer --->>>)3 and 4 only
The most reliable method of determining whether the lungs of a patient receiving
mechanical ventilation are getting stiffer and harder to ventilate is by measuring the . (-
correct answer --->>>)Static lung compliance
Which one of these drugs would be best to use to temporarily paralyze a patient to
facilitate tracheal intubation? . (-correct answer --->>>)Succinylcholine (Anectine)
A patient receiving mechanical ventilation has the following ABG values
pH 7.54
PaCO2 26 torr
PaO2 102 torr
HCO3 24 mEq/L
BE 0
All of the following ventilator changes would help correct this EXCEPT . (-correct
answer --->>>)Increasing the respiratory rate
The following pulmonary function data are obtained from a patient before and after
bronchodilator therapy.
Before After
FVC 37% of predicted 53% of predicted
FEV1 42% of predicted 56% of predicted
FEV1/FVC 40% 55%
Which of the following is the correct interpretation of these results? . (-correct
answer --->>>)Severe obstructive disease, significant bronchodilator response
The following spontaneous ventilation variables are collected from a 68-kg (150-lb)
patient with a 2-L/min nasal cannula
VT 500ml
Respiratory rate 10/min
This patient's alveolar minute ventilation is which of the following? . (-correct
answer --->>>)3.5 L
,A patient has a pH of 7.18 and a PaCO2 of 24 torr. Which of the following can be
concluded regarding this blood gas data? . (-correct answer --->>>)Metabolic
acidosis is presen
The data below pertain to an adult receiving mechanical ventilation:
PIP 50 cmH2O
Plateau pressure 40 cmH2O
VT 800 ml
PEEP 10 cmH2O
On the basis of this information, this patient's static lung compliance is approximately
which of the following? . (-correct answer --->>>)27 ml/cmH2O
A patient with COPD on a 50% air-entrainment mask becomes drowsy and
unresponsive. The patient's reaction most likely is the result of . (-correct answer ---
>>>)Increased PaCO2
The respiratory therapist is asked to assess a 30-week gestational age infant with
persistent pulmonary hypertension of the newborn (PPHN). Which of the following
would you recommend to help treat this condition?
1 Permissive hypercapnia
2 Nitric oxide
3 Pre and postductal oxygenation study
4 Hyperventilation . (-correct answer --->>>)2 and 4 only
A 26-year-old patient has been experiencing a moderate asthmatic attack for 30
minutes. Which of the following ABG results would you expect to observe if the patient
was breathing room air? . (-correct answer --->>>)pH 7.51, PaCO2 27 torr, PaO2
60 torr
All of the following are low-flow O2 devices EXCEPT the . (-correct answer ---
>>>)Air-entrainment mask
The high-pressure alarm on volume-controlled ventilation should be set approximately
10 cm H2O pressure above which of the following? . (-correct answer --->>>)Peak
airway pressure
A patient is receiving volume-controlled ventilation in assist-control mode. The low-
pressure alarm is sounding. Which of the following may be the cause of the alarm
activation? . (-correct answer --->>>)Patient disconnected from the ventilator
The following data have been collected for a patient receiving volume-controlled
ventilation:
VT 750 ml pH 7.29
Mode: SIMV PaCO2 50 torr
,Ventilator rate 4/min PaO2 72 torr
Spontaneous rate 12/min HCO3 26 mEq/L
FiO2 0.35 BE +1
On the basis of these data, which of the following should the respiratory therapist
recommend? . (-correct answer --->>>)Increase the ventilator rate to 8/min
A 43-year-old patient in the ICU is receiving 40% O2 by air-entrainment mask. His
PaO2 is 58 torr, and his shunt has been calculated to be 6%. Which of the following is
most likely causing his hypoxemia? . (-correct answer --->>>)Hypoventilation
During CPR, the physician is preparing to administer lidocaine intraveneously and
discovers that the IV is infiltrated. The most appropriate action is to take at this time is to
. (-correct answer --->>>)Instill the lidocaine down the ET tube
The following ABG results are obtained from a patient recently removed from a house
fire receiving O2 with a nonrebreathing mask.
pH 7.23
PaCO2 25 torr
PaO2 250 torr
HCO3 15 mEq/L
BE -10
SaO2 65%
The patient's acidosis is most likely the result of . (-correct answer --->>>)Severe
hypoxia
The respiratory therapist is called to the pediatric ICU to suction an 8-year-old ventilator
patient with pneumonia who is intubated with a 6.0 ET tube. Which of the following
represents the most appropriate catheter size and suction pressure to use on this
patient? . (-correct answer --->>>)10-Fr catheter, -100 mmHg
The physician has ordered O2 to be administered to an active 3-year-old with an SpO2
of 86%. Which of the following delivery devices would you recommend for this patient? .
(-correct answer --->>>)1- to 2-L nasal cannula
The following data have been recorded from a patient receiving volume-controlled
ventilation:
Mode Assist-control
Ventilator rate 10/min
VT 750 mL
FiO2 0.60
PEEP 6 cmH2O
pH 7.51
PaCO2 30 torr
PaO2 57 torr
HCO3 25 mEq/L . (-correct answer --->>>)Increase PEEP to 8 cmH2O
, The following data are obtained from a 36-week-old infant who is receiving pressure
controlled ventilation:
Mode PC-IMV
Inpsiratory pressure 26 cmH2O
FiO2 0.50
PEEP 8 cmH2O
Ventilator rate 35/min
ABGs:
pH 7.45
PaCO2 36 torr
PaO2 98 torr
Which of the following should the respiratory therapist recommend at this time? . (-
correct answer --->>>)Decrease PEEP to 6 cmH2O
The following data are obtained from a 32-year-old patient with pneumonia in the ICU
on a 60% aerosol mask:
Respiratory rate 28/min
Pulse 108/min
ABGs:
pH 7.47
PaCO2 32 torr
PaO2 55 torr
Which of the following would you recommend at this time? . (-correct answer ---
>>>)Initiate CPAP
A patient's PaO2 increases after mechanical ventilation is initiated at 21% O2. What
accounts for the improved oxygenation status?
1 Increased distribution of ventilation
2 Increased VD/VT ratio
3 Decreased venous return to the heart
4 Increased P(A-a)O2 . (-correct answer --->>>)1 only
While ventilating the lungs of an intubated apneic patient with a manual resuscitator,
you notice very little resistance when the bag is compressed and the patient's chest
rises only minimally. Which of the following may be the cause of this problems? . (-
correct answer --->>>)Inadequate ET tube cuff pressure
What is the most appropriate ventilator VT setting on a 75-kg (165-lb) drug overdose
patient? . (-correct answer --->>>)500
A 48-year old, 75 kg (165lb) woman is in the ICU after coronary bypass surgery. The
patient is to receive mechanical ventilation.
Answers SOLUTION 2025/2026
Which of the following situations would result in the high-pressure alarm being activated
during volume-controlled ventilation?
1 Leak in the circuit
2 Patient disconnected from the ventilator
3 Patient coughing
4 Water in the tubing . (-correct answer --->>>)3 and 4 only
The most reliable method of determining whether the lungs of a patient receiving
mechanical ventilation are getting stiffer and harder to ventilate is by measuring the . (-
correct answer --->>>)Static lung compliance
Which one of these drugs would be best to use to temporarily paralyze a patient to
facilitate tracheal intubation? . (-correct answer --->>>)Succinylcholine (Anectine)
A patient receiving mechanical ventilation has the following ABG values
pH 7.54
PaCO2 26 torr
PaO2 102 torr
HCO3 24 mEq/L
BE 0
All of the following ventilator changes would help correct this EXCEPT . (-correct
answer --->>>)Increasing the respiratory rate
The following pulmonary function data are obtained from a patient before and after
bronchodilator therapy.
Before After
FVC 37% of predicted 53% of predicted
FEV1 42% of predicted 56% of predicted
FEV1/FVC 40% 55%
Which of the following is the correct interpretation of these results? . (-correct
answer --->>>)Severe obstructive disease, significant bronchodilator response
The following spontaneous ventilation variables are collected from a 68-kg (150-lb)
patient with a 2-L/min nasal cannula
VT 500ml
Respiratory rate 10/min
This patient's alveolar minute ventilation is which of the following? . (-correct
answer --->>>)3.5 L
,A patient has a pH of 7.18 and a PaCO2 of 24 torr. Which of the following can be
concluded regarding this blood gas data? . (-correct answer --->>>)Metabolic
acidosis is presen
The data below pertain to an adult receiving mechanical ventilation:
PIP 50 cmH2O
Plateau pressure 40 cmH2O
VT 800 ml
PEEP 10 cmH2O
On the basis of this information, this patient's static lung compliance is approximately
which of the following? . (-correct answer --->>>)27 ml/cmH2O
A patient with COPD on a 50% air-entrainment mask becomes drowsy and
unresponsive. The patient's reaction most likely is the result of . (-correct answer ---
>>>)Increased PaCO2
The respiratory therapist is asked to assess a 30-week gestational age infant with
persistent pulmonary hypertension of the newborn (PPHN). Which of the following
would you recommend to help treat this condition?
1 Permissive hypercapnia
2 Nitric oxide
3 Pre and postductal oxygenation study
4 Hyperventilation . (-correct answer --->>>)2 and 4 only
A 26-year-old patient has been experiencing a moderate asthmatic attack for 30
minutes. Which of the following ABG results would you expect to observe if the patient
was breathing room air? . (-correct answer --->>>)pH 7.51, PaCO2 27 torr, PaO2
60 torr
All of the following are low-flow O2 devices EXCEPT the . (-correct answer ---
>>>)Air-entrainment mask
The high-pressure alarm on volume-controlled ventilation should be set approximately
10 cm H2O pressure above which of the following? . (-correct answer --->>>)Peak
airway pressure
A patient is receiving volume-controlled ventilation in assist-control mode. The low-
pressure alarm is sounding. Which of the following may be the cause of the alarm
activation? . (-correct answer --->>>)Patient disconnected from the ventilator
The following data have been collected for a patient receiving volume-controlled
ventilation:
VT 750 ml pH 7.29
Mode: SIMV PaCO2 50 torr
,Ventilator rate 4/min PaO2 72 torr
Spontaneous rate 12/min HCO3 26 mEq/L
FiO2 0.35 BE +1
On the basis of these data, which of the following should the respiratory therapist
recommend? . (-correct answer --->>>)Increase the ventilator rate to 8/min
A 43-year-old patient in the ICU is receiving 40% O2 by air-entrainment mask. His
PaO2 is 58 torr, and his shunt has been calculated to be 6%. Which of the following is
most likely causing his hypoxemia? . (-correct answer --->>>)Hypoventilation
During CPR, the physician is preparing to administer lidocaine intraveneously and
discovers that the IV is infiltrated. The most appropriate action is to take at this time is to
. (-correct answer --->>>)Instill the lidocaine down the ET tube
The following ABG results are obtained from a patient recently removed from a house
fire receiving O2 with a nonrebreathing mask.
pH 7.23
PaCO2 25 torr
PaO2 250 torr
HCO3 15 mEq/L
BE -10
SaO2 65%
The patient's acidosis is most likely the result of . (-correct answer --->>>)Severe
hypoxia
The respiratory therapist is called to the pediatric ICU to suction an 8-year-old ventilator
patient with pneumonia who is intubated with a 6.0 ET tube. Which of the following
represents the most appropriate catheter size and suction pressure to use on this
patient? . (-correct answer --->>>)10-Fr catheter, -100 mmHg
The physician has ordered O2 to be administered to an active 3-year-old with an SpO2
of 86%. Which of the following delivery devices would you recommend for this patient? .
(-correct answer --->>>)1- to 2-L nasal cannula
The following data have been recorded from a patient receiving volume-controlled
ventilation:
Mode Assist-control
Ventilator rate 10/min
VT 750 mL
FiO2 0.60
PEEP 6 cmH2O
pH 7.51
PaCO2 30 torr
PaO2 57 torr
HCO3 25 mEq/L . (-correct answer --->>>)Increase PEEP to 8 cmH2O
, The following data are obtained from a 36-week-old infant who is receiving pressure
controlled ventilation:
Mode PC-IMV
Inpsiratory pressure 26 cmH2O
FiO2 0.50
PEEP 8 cmH2O
Ventilator rate 35/min
ABGs:
pH 7.45
PaCO2 36 torr
PaO2 98 torr
Which of the following should the respiratory therapist recommend at this time? . (-
correct answer --->>>)Decrease PEEP to 6 cmH2O
The following data are obtained from a 32-year-old patient with pneumonia in the ICU
on a 60% aerosol mask:
Respiratory rate 28/min
Pulse 108/min
ABGs:
pH 7.47
PaCO2 32 torr
PaO2 55 torr
Which of the following would you recommend at this time? . (-correct answer ---
>>>)Initiate CPAP
A patient's PaO2 increases after mechanical ventilation is initiated at 21% O2. What
accounts for the improved oxygenation status?
1 Increased distribution of ventilation
2 Increased VD/VT ratio
3 Decreased venous return to the heart
4 Increased P(A-a)O2 . (-correct answer --->>>)1 only
While ventilating the lungs of an intubated apneic patient with a manual resuscitator,
you notice very little resistance when the bag is compressed and the patient's chest
rises only minimally. Which of the following may be the cause of this problems? . (-
correct answer --->>>)Inadequate ET tube cuff pressure
What is the most appropriate ventilator VT setting on a 75-kg (165-lb) drug overdose
patient? . (-correct answer --->>>)500
A 48-year old, 75 kg (165lb) woman is in the ICU after coronary bypass surgery. The
patient is to receive mechanical ventilation.
