Mechanical Ventilation Final Exam Study
Guide with Answers 100% Correct
During pressure-controlled ventilation, a lower tidal volume would result when the patient's
compliance is __________ or airflow resistance is ______________.
A. Decreased; decreased
B. Decreased; increased
C. Increased; decreased
D. Increased; increased ✔✔ B. Decreased; increased
A unique feature of the HFOV is that it produces extremely rapid _______ cycles.
A. Inspiratory
B. Expiratory
C. Inspiratory and expiratory
D. None of the answers are correct ✔✔ C. Inspiratory and expiratory
An infant has the following measurements: mean airway pressure = 25 cm H2O, PaO2 = 45 mm
Hg at an FiO2 of 60%. What is the calculated oxygen index (OI)?
A. 15
B. 27
C. 33
D. 52 ✔✔ C. 33
Based on the indications for prophylactic use of surfactant, the following condition must be
met:
A. Birth weight less than 1250 g
B. Gestational age at or less than 26 weeks
,C. PaO2/PAO2 less than 0.22
D. All of the answers are correct ✔✔ D. All of the answers are correct
____ has potential applications for use in several diseases that traditionally have been difficult
to treat such as RDS, aspiration syndromes, persistent pulmonary hypertension of the newborn,
and pneumonia.
A. Machine volume
B. Liquid ventilation
C. Volume guarantee
D. HFV ✔✔ B. Liquid ventilation
The blood gas values of a normal umbilical artery sample include all of the following except:
A. PaCO2 from 35-45 mm Hg
B. PaO2 greater than 50 mm Hg
C. pH from 7.30-7.45
D. SaO2 from 60%-90% ✔✔ D. SaO2 from 60%-90%
A randomized trial comparing two surfactants, those obtained from mammalian lungs and those
that are synthetically produced, found an advantage in using synthetic surfactant.
A. True
B. False ✔✔ B. False
A preterm infant has a diagnosis of respiratory distress syndrome. The therapist should expect
to read in the chart that the neonate showed all of the following signs except:
A. Apnea
B. Chest retraction
C. Expiratory grunting
,D. Nasal flaring ✔✔ A. Apnea
A neonate is being ventilated by HFOV. Her physician would like to lower the patient's PaCO2.
The therapist should increase the level of ventilation by __________ or __________.
A. Decreasing the power (amplitude); decreasing the frequency (Hz)
B. Decreasing the power (amplitude); increasing the frequency (Hz)
C. Increasing the power (amplitude); decreasing the frequency (Hz)
D. Increasing the power (amplitude); increasing the frequency (Hz) ✔✔ C. Increasing the power
(amplitude); decreasing the frequency (Hz)
The tidal volumes delivered by pressure-controlled ventilation are dependent on the:
A. Airflow resistance
B. Patient's lung compliance
C. Pressure setting
D. All the answers are correct ✔✔ D. All the answers are correct
Which of the following common surfactants has a recommended dosage of 4 mL/kg every 6
hours up to 4 total doses in the first 48 hours?
A. Infasurf®
B. Survanta®
C. Exosurf®
D. Curosurf® ✔✔ B. Survanta®
In addition to the FiO2 control on a HFOV, a patient's oxygenation status can be improved by
increasing the:
A. Amplitude
B. Frequency
, C. Mean airway pressure
D. Power ✔✔ C. Mean airway pressure
HFPPV is delivered at frequencies between ____ cycles per minute. A. 40 to 60
B. 60 to 150
C. 240 to 660
D. 480 to 1800 ✔✔ B. 60 to 150
CPAP reduces V/Q mismatch by improving ____ and reducing intrapulmonary shunting.
A. Minute ventilation
B. Respiratory frequency
C. Functional residual capacity
D. Gas exchange ✔✔ C. Functional residual capacity
The indications for using ____ include severe pulmonary disease that is complicated by air leaks,
such as pulmonary interstitial emphysema (PIE), pulmonary hypoplasia, restrictive lung disease,
and persistent pulmonary hypertension.
A. PRVC
B. HFOV
C. MV
D. HFJV ✔✔ D. HFJV
The power setting of HFOV determines all of the following parameters except:
A. Amplitude of oscillation
B. Degree of ventilation
C. Inspiratory time
Guide with Answers 100% Correct
During pressure-controlled ventilation, a lower tidal volume would result when the patient's
compliance is __________ or airflow resistance is ______________.
A. Decreased; decreased
B. Decreased; increased
C. Increased; decreased
D. Increased; increased ✔✔ B. Decreased; increased
A unique feature of the HFOV is that it produces extremely rapid _______ cycles.
A. Inspiratory
B. Expiratory
C. Inspiratory and expiratory
D. None of the answers are correct ✔✔ C. Inspiratory and expiratory
An infant has the following measurements: mean airway pressure = 25 cm H2O, PaO2 = 45 mm
Hg at an FiO2 of 60%. What is the calculated oxygen index (OI)?
A. 15
B. 27
C. 33
D. 52 ✔✔ C. 33
Based on the indications for prophylactic use of surfactant, the following condition must be
met:
A. Birth weight less than 1250 g
B. Gestational age at or less than 26 weeks
,C. PaO2/PAO2 less than 0.22
D. All of the answers are correct ✔✔ D. All of the answers are correct
____ has potential applications for use in several diseases that traditionally have been difficult
to treat such as RDS, aspiration syndromes, persistent pulmonary hypertension of the newborn,
and pneumonia.
A. Machine volume
B. Liquid ventilation
C. Volume guarantee
D. HFV ✔✔ B. Liquid ventilation
The blood gas values of a normal umbilical artery sample include all of the following except:
A. PaCO2 from 35-45 mm Hg
B. PaO2 greater than 50 mm Hg
C. pH from 7.30-7.45
D. SaO2 from 60%-90% ✔✔ D. SaO2 from 60%-90%
A randomized trial comparing two surfactants, those obtained from mammalian lungs and those
that are synthetically produced, found an advantage in using synthetic surfactant.
A. True
B. False ✔✔ B. False
A preterm infant has a diagnosis of respiratory distress syndrome. The therapist should expect
to read in the chart that the neonate showed all of the following signs except:
A. Apnea
B. Chest retraction
C. Expiratory grunting
,D. Nasal flaring ✔✔ A. Apnea
A neonate is being ventilated by HFOV. Her physician would like to lower the patient's PaCO2.
The therapist should increase the level of ventilation by __________ or __________.
A. Decreasing the power (amplitude); decreasing the frequency (Hz)
B. Decreasing the power (amplitude); increasing the frequency (Hz)
C. Increasing the power (amplitude); decreasing the frequency (Hz)
D. Increasing the power (amplitude); increasing the frequency (Hz) ✔✔ C. Increasing the power
(amplitude); decreasing the frequency (Hz)
The tidal volumes delivered by pressure-controlled ventilation are dependent on the:
A. Airflow resistance
B. Patient's lung compliance
C. Pressure setting
D. All the answers are correct ✔✔ D. All the answers are correct
Which of the following common surfactants has a recommended dosage of 4 mL/kg every 6
hours up to 4 total doses in the first 48 hours?
A. Infasurf®
B. Survanta®
C. Exosurf®
D. Curosurf® ✔✔ B. Survanta®
In addition to the FiO2 control on a HFOV, a patient's oxygenation status can be improved by
increasing the:
A. Amplitude
B. Frequency
, C. Mean airway pressure
D. Power ✔✔ C. Mean airway pressure
HFPPV is delivered at frequencies between ____ cycles per minute. A. 40 to 60
B. 60 to 150
C. 240 to 660
D. 480 to 1800 ✔✔ B. 60 to 150
CPAP reduces V/Q mismatch by improving ____ and reducing intrapulmonary shunting.
A. Minute ventilation
B. Respiratory frequency
C. Functional residual capacity
D. Gas exchange ✔✔ C. Functional residual capacity
The indications for using ____ include severe pulmonary disease that is complicated by air leaks,
such as pulmonary interstitial emphysema (PIE), pulmonary hypoplasia, restrictive lung disease,
and persistent pulmonary hypertension.
A. PRVC
B. HFOV
C. MV
D. HFJV ✔✔ D. HFJV
The power setting of HFOV determines all of the following parameters except:
A. Amplitude of oscillation
B. Degree of ventilation
C. Inspiratory time
