Mechanical Ventilation Exam 3 Questions
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• The following data are obtained from an intubated and mechanically ventilated
patient: PIP=50 cmH20, Plateau=25 cmH20, PEEP=5 cmH20, VT=600 ml. The
respiratory therapist should conclude -✓✓the patient has increased airway
resistance
• A patient who is in respiratory failure requires immediate intubation. For initial
assessment of endotracheal tube placement the respiratory therapist should
recommend -✓✓PETCO2
• The plateau pressure should be -✓✓< 30 cmH20
• A ventilator may malfunction during use. When this occurs, the clinician must
first _______________. -✓✓ensure that the patient is being ventilated
• What is the first parameter that should be measured after the administration of
PEEP? -✓✓Blood pressure
• A patient is receiving mechanical ventilation and shows signs of refractory
hypoxemia. Which of the following should be increased first to increase the
patient's PaO2? -✓✓PEEP
• When excessive levels of PEEP are applied to the respiratory system, what is the
effect on static compliance (CS) and cardiac output? -✓✓Both C.S. and C.O.
decrease
• Which waveform gives the shortest TI -✓✓square waveform
• what prevents the flow curve from returning to zero at the end of exhalation? -
✓✓leak
• Which of the following causes auto-PEEP? -✓✓High minute ventilation
, • A 26 year old patient is receiving volume ventilation due to status asthmatics.
Current vent settings yield a 1:1.5 I:E ratio and a PaCO2 of 51 torr. Which of the
following should the therapist decrease? -✓✓inspiratory time
• Heat moisture exchangers are contraindicated in all of the following except
a. in patients with tracheostomies
b. patients with thick, copious, or bloody secretions
c. patients with body tempertures of <32 degrees celsius (hypothermia)
d. when exhaled VT is less than 70% of inhaled VT -✓✓in patients with
tracheostomies
• Humidifiers for mechanical ventilation should provide at least 30 mg H20/L of
absolute humidity at a range of about 31 degrees celsius to 35 degrees celsius for
all available flows up to 20 to 30 L/min -✓✓True
• Which two factors determine the volume delivered from a mechanical ventilator?
-✓✓flow and pressure
• For which of the following reasons is hypovolemia considered a relative
contraindication for the use and application of PEEP or CPAP therapy? -
✓✓Application of PEEP or CPAP in this setting may cause a severe decrease in
C.O.
• All of the following will cause a right shift in the oxyhemoglobin dissociation
curve except
a. increased temp
b. alkalosis (increased pH)
c. increased 2.3 DPG
d. acidosis (decreased pH) -✓✓alkalosis (increased pH)
• Which of the following statements suggests that a patient's lungs are responsive
to PEEP therapy in a positive way? -✓✓Shunt decreases, lung compliance
increases, and C.O. is not adversely affected
• As lung compliance increases, the pressure required to deliver the volume to the
patient increases -✓✓False
and Answers | Latest Test Bank with Verified
Solutions | A+ Pass Guaranteed
• The following data are obtained from an intubated and mechanically ventilated
patient: PIP=50 cmH20, Plateau=25 cmH20, PEEP=5 cmH20, VT=600 ml. The
respiratory therapist should conclude -✓✓the patient has increased airway
resistance
• A patient who is in respiratory failure requires immediate intubation. For initial
assessment of endotracheal tube placement the respiratory therapist should
recommend -✓✓PETCO2
• The plateau pressure should be -✓✓< 30 cmH20
• A ventilator may malfunction during use. When this occurs, the clinician must
first _______________. -✓✓ensure that the patient is being ventilated
• What is the first parameter that should be measured after the administration of
PEEP? -✓✓Blood pressure
• A patient is receiving mechanical ventilation and shows signs of refractory
hypoxemia. Which of the following should be increased first to increase the
patient's PaO2? -✓✓PEEP
• When excessive levels of PEEP are applied to the respiratory system, what is the
effect on static compliance (CS) and cardiac output? -✓✓Both C.S. and C.O.
decrease
• Which waveform gives the shortest TI -✓✓square waveform
• what prevents the flow curve from returning to zero at the end of exhalation? -
✓✓leak
• Which of the following causes auto-PEEP? -✓✓High minute ventilation
, • A 26 year old patient is receiving volume ventilation due to status asthmatics.
Current vent settings yield a 1:1.5 I:E ratio and a PaCO2 of 51 torr. Which of the
following should the therapist decrease? -✓✓inspiratory time
• Heat moisture exchangers are contraindicated in all of the following except
a. in patients with tracheostomies
b. patients with thick, copious, or bloody secretions
c. patients with body tempertures of <32 degrees celsius (hypothermia)
d. when exhaled VT is less than 70% of inhaled VT -✓✓in patients with
tracheostomies
• Humidifiers for mechanical ventilation should provide at least 30 mg H20/L of
absolute humidity at a range of about 31 degrees celsius to 35 degrees celsius for
all available flows up to 20 to 30 L/min -✓✓True
• Which two factors determine the volume delivered from a mechanical ventilator?
-✓✓flow and pressure
• For which of the following reasons is hypovolemia considered a relative
contraindication for the use and application of PEEP or CPAP therapy? -
✓✓Application of PEEP or CPAP in this setting may cause a severe decrease in
C.O.
• All of the following will cause a right shift in the oxyhemoglobin dissociation
curve except
a. increased temp
b. alkalosis (increased pH)
c. increased 2.3 DPG
d. acidosis (decreased pH) -✓✓alkalosis (increased pH)
• Which of the following statements suggests that a patient's lungs are responsive
to PEEP therapy in a positive way? -✓✓Shunt decreases, lung compliance
increases, and C.O. is not adversely affected
• As lung compliance increases, the pressure required to deliver the volume to the
patient increases -✓✓False
