Mechanical Ventilation Exam 3 Updated
Study Guide Questions and Answers |
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• A patient is being ventilated in volume control. The blood gases are measured:pH
7.32PaO2 52 torrPaCO2 45 torrHCO3 21 mEq/LSaO2 84%In order to assess the
hypoxemia present in this patient, which of the following studies would be
appropriate
:I. QS/QT
II. VD/VT
III. P(A-a)O2 gradient
IV. Maximum Inspiratory Pressure
V. Respiratory Rate
I and III only
II and IV only
I, IV and V only
II, III, IV and V only -✓✓a
• A 5'11", 80 kg (176 lb) man is being mechanically ventilated in the pressure
support mode with a pressure support level set at 10 cm H2O. Exhaled VT is 350
mL, patients respiratory rate is 12, FIO2 is 0.45, and PEEP is 5 cm H2O.The
patient's blood gases are as follows pH 7.32 PaCO2 47 torr PaO2 76 torr O2Sat
91% The respiratory therapist should
increase the
set tidal volume to 800 mL.
FIO2 to 0.50.
inspiratory time.
pressure support to 15 cm H2O. -✓✓d pressure support
• When changing a patient to pressure control ventilation from volume control
ventilation, what is the first parameter to check to determine appropriate changes
have been made?
tidal volume.
static lung compliance.
plateau inspiratory pressure.
,auto-PEEP -✓✓tidal volume
• A 66 kg (145 lb) patient is on a ventilator with the following settings and
assessments: VT (set) 700 mL VT (spont) 180 mLRR (set) 6 RR (spont) 26FIO2
0.40PEEP 5 cm H2OPIP 25 cm H2OPlateau 15 cm H2OThe respiratory therapist
should recommend
increasing the PEEP to 7 cm H2O.
increasing the tidal volume to 750 mL.
adding 10 cm H2O pressure support.
increase the set respiratory rate to 8. -✓✓C. adding 10
• A post-operative 80 kg (165 lb) hernia patient is being ventilated with a volume-
controlled ventilator at the following settings:Mode Assist/ControlVT 600 mLRate
10Pressure limit 25 cm H2OFIO2 0.40 The patient is conscious, anxious and being
assisted by the ventilator at a rate of 29. An arterial blood gas is drawn and the
results are as follows:pH 7.54PaCO2 29 torrPaO2 93 torrSaO2 98%HCO3 24
mEq/L
Which of the following should the therapist recommend for this patient?
administer pancuronium bromide (Pavulon)
decrease the set ventilator rate
decrease the FIO2
change to SIMV mode -✓✓change to simv mode
• You suspect a patient may have a pulmonary embolism. Which of the following
would be the most appropriate recommendation for diagnosis of this condition?
bronchoscopy
V/Q lung scan
coagulation studies
shunt study -✓✓v/q lung scan
• What finding on the chest x-ray is NOT typical for bacterial pneumonia?
lobar consolidation
interstitial infiltrates
, patchy infiltrate surrounding one bronchus or several bronchi
pleural effusion -✓✓interstitial infiltrates
• What is the most common cause of pleural effusion in the clinical setting?
liver disease
acute renal disease
congestive heart failure
lung cancer -✓✓CHF
• A 68kg female patient in pressure control ventilation with a desired Vt of 400ml,
PC level: 22cmH2O, RR: 12bpm, PEEP 8cmH2O, Itime: 1second, and FiO2: 60%.
ABGs after 1 hour on the ventilator are: 7.32, PaCO2: 62mmHg, PaO2:
127mmHg, Bicarb: 25. The patients is not breathing over the ventilators set RR.
Which of the following would be the most appropriate change to improve the
patient's acid base balance.
Increase RR to 14bpm.
Add PS of 10cmH2O
Increase PC to achieve a Vt of 650ml
Decrease FiO2 -✓✓increase RR
• An 88kg male patient in volume control ventilation with a desired Vt of 550ml,
RR: 12bpm, PEEP 5cmH2O, Itime: 1second, and FiO2: 70%. ABGs after 1 hour
on the ventilator are: 7.31, PaCO2: 66mmHg, PaO2: 47mmHg, Bicarb: 25. The
patient is not breathing over the ventilators set RR. Which of the following would
be the most appropriate change to improve the patient's oxygenation status.
Increase FiO2 to 80%
Increase RR to 14bpm
Increase PEEP to 8cmH2O
Increase desired Vt to 880ml -✓✓increase PEEP
• A 56kg female patient in VC with a Vt of 400ml, RR: 12bpm, PEEP 8cmH2O,
Itime: 1second, and FiO2: 60%. ABGs after 1 hour on the ventilator are: 7.31,
PaCO2: 43mmHg, PaO2: 87mmHg, Bicarb: 15. The patient is not breathing over
the ventilators set RR. Which of the following would be the most appropriate
action the Respiratory Therapist should take?
Increase the RR to 14bpm
Study Guide Questions and Answers |
Focused Revision Pack | A+ Verified
• A patient is being ventilated in volume control. The blood gases are measured:pH
7.32PaO2 52 torrPaCO2 45 torrHCO3 21 mEq/LSaO2 84%In order to assess the
hypoxemia present in this patient, which of the following studies would be
appropriate
:I. QS/QT
II. VD/VT
III. P(A-a)O2 gradient
IV. Maximum Inspiratory Pressure
V. Respiratory Rate
I and III only
II and IV only
I, IV and V only
II, III, IV and V only -✓✓a
• A 5'11", 80 kg (176 lb) man is being mechanically ventilated in the pressure
support mode with a pressure support level set at 10 cm H2O. Exhaled VT is 350
mL, patients respiratory rate is 12, FIO2 is 0.45, and PEEP is 5 cm H2O.The
patient's blood gases are as follows pH 7.32 PaCO2 47 torr PaO2 76 torr O2Sat
91% The respiratory therapist should
increase the
set tidal volume to 800 mL.
FIO2 to 0.50.
inspiratory time.
pressure support to 15 cm H2O. -✓✓d pressure support
• When changing a patient to pressure control ventilation from volume control
ventilation, what is the first parameter to check to determine appropriate changes
have been made?
tidal volume.
static lung compliance.
plateau inspiratory pressure.
,auto-PEEP -✓✓tidal volume
• A 66 kg (145 lb) patient is on a ventilator with the following settings and
assessments: VT (set) 700 mL VT (spont) 180 mLRR (set) 6 RR (spont) 26FIO2
0.40PEEP 5 cm H2OPIP 25 cm H2OPlateau 15 cm H2OThe respiratory therapist
should recommend
increasing the PEEP to 7 cm H2O.
increasing the tidal volume to 750 mL.
adding 10 cm H2O pressure support.
increase the set respiratory rate to 8. -✓✓C. adding 10
• A post-operative 80 kg (165 lb) hernia patient is being ventilated with a volume-
controlled ventilator at the following settings:Mode Assist/ControlVT 600 mLRate
10Pressure limit 25 cm H2OFIO2 0.40 The patient is conscious, anxious and being
assisted by the ventilator at a rate of 29. An arterial blood gas is drawn and the
results are as follows:pH 7.54PaCO2 29 torrPaO2 93 torrSaO2 98%HCO3 24
mEq/L
Which of the following should the therapist recommend for this patient?
administer pancuronium bromide (Pavulon)
decrease the set ventilator rate
decrease the FIO2
change to SIMV mode -✓✓change to simv mode
• You suspect a patient may have a pulmonary embolism. Which of the following
would be the most appropriate recommendation for diagnosis of this condition?
bronchoscopy
V/Q lung scan
coagulation studies
shunt study -✓✓v/q lung scan
• What finding on the chest x-ray is NOT typical for bacterial pneumonia?
lobar consolidation
interstitial infiltrates
, patchy infiltrate surrounding one bronchus or several bronchi
pleural effusion -✓✓interstitial infiltrates
• What is the most common cause of pleural effusion in the clinical setting?
liver disease
acute renal disease
congestive heart failure
lung cancer -✓✓CHF
• A 68kg female patient in pressure control ventilation with a desired Vt of 400ml,
PC level: 22cmH2O, RR: 12bpm, PEEP 8cmH2O, Itime: 1second, and FiO2: 60%.
ABGs after 1 hour on the ventilator are: 7.32, PaCO2: 62mmHg, PaO2:
127mmHg, Bicarb: 25. The patients is not breathing over the ventilators set RR.
Which of the following would be the most appropriate change to improve the
patient's acid base balance.
Increase RR to 14bpm.
Add PS of 10cmH2O
Increase PC to achieve a Vt of 650ml
Decrease FiO2 -✓✓increase RR
• An 88kg male patient in volume control ventilation with a desired Vt of 550ml,
RR: 12bpm, PEEP 5cmH2O, Itime: 1second, and FiO2: 70%. ABGs after 1 hour
on the ventilator are: 7.31, PaCO2: 66mmHg, PaO2: 47mmHg, Bicarb: 25. The
patient is not breathing over the ventilators set RR. Which of the following would
be the most appropriate change to improve the patient's oxygenation status.
Increase FiO2 to 80%
Increase RR to 14bpm
Increase PEEP to 8cmH2O
Increase desired Vt to 880ml -✓✓increase PEEP
• A 56kg female patient in VC with a Vt of 400ml, RR: 12bpm, PEEP 8cmH2O,
Itime: 1second, and FiO2: 60%. ABGs after 1 hour on the ventilator are: 7.31,
PaCO2: 43mmHg, PaO2: 87mmHg, Bicarb: 15. The patient is not breathing over
the ventilators set RR. Which of the following would be the most appropriate
action the Respiratory Therapist should take?
Increase the RR to 14bpm
