Lindsey Jones Practice Questions With Correct Answers |
2025
A patient is undergoing a cardiac workup and tolerance assessment while riding a stationary
bicycle. After a few minutes of observing the patient, the respiratory therapist increases the
tension to the cycle and observes the following change in blood pressure, SpO2, and heart rate:
Before After
HR 98 119
BP 122/85 mm Hg 149/98 mm Hg
SpO2 0.97 0.95
A. administer Dobutrex (dobutamine).
B. reduce the cycle tension to the previous level.
C. continue the evaluation.
D. discontinue the assessment and document. - C. continue the evaluation.
A respiratory therapist is given the charge to sterilize a bronchoscope. Which of the following
should the respiratory therapist use to accomplish sterilization?
A. Steam autoclave
B. Irradiation followed by ethylene oxide
C. Alkaline gluteraldehyde (Cidex)
D. Pasteurization - C. Alkaline gluteraldehyde (Cidex)
,On a patient receiving mechanical ventilation, it is observed that peak airway pressures have
been rising. During that same time interval, plateau pressures have been rising by
approximately the same amount. This is most suggestive of
A. increasing dynamic compliance.
B. a decrease in pulmonary atelectasis.
C. decreasing pulmonary compliance.
D. increased elasticity of interstitial pulmonary tissue. - C. decreasing pulmonary compliance.
A patient is on his second week in the intensive care unit (ICU). A tracheostomy is in place and
he is receiving ventilatory support by VC, A/C ventilation on the following settings:
FIO2 0.6
PEEP 18 cm H2O
Rate 18/min
VT 450 mL
Other data shows:
PAW 42 cm H2O
HR 110/min
PAP 34/10 mm Hg
CVP 6 mm Hg
PCWP 8 cm H2O
C.I. 2.3 L/min/m2
,ABGs
pH 7.30
PaCO2 51 mm Hg
PaO2 50 mm Hg
HCO3- 26 mEq/L
BE -4 mEq/L
Based on this information, the respiratory therapist should recommend
A. an intra-aortic balloon pump.
B. ECMO.
C. transtracheal oxygen.
D. NAVA ventilation - B. ECMO.
The current oxygen index is calculated to be above 50. Once an oxygen index is greater than 40,
the patient 1) most likely has ARDS and could benefit from extracorporeal membrane
oxygenation (ECMO). Oxygen index is calculated by: OI = (O2% x PAW) / PaO2 OI = (60 x 42) / 50
OI = OI = 50.4
A patient who has suffered a cerebral vascular accident cannot move her arms. She is recovering
in a long-term care department of a 250-bed hospital. The patient requires frequent assistance
with pulmonary hygiene as she is unable to expectorate. She has a strong and effective cough.
Which of the following devices is the most appropriate to assist with secretion removal?
, A. oral tip catheter, self-administered
B. nasal pharyngeal airway
C. tracheostomy tube
D. oral pharyngeal airway - B. nasal pharyngeal airway
Explanation :
A nasopharyngeal airway, also known as a nasal trumpet, is inserted into one of the nostrils
using a water-based lubricant. The size is determined by matching the inside diameter of the
inner naris. The Iength is approximately equal to the distance between the earlobe and the
nasal septum. When too long, the patient make cough uncontrollably. These devices help to
facilitate secretion removal for a patient requiring frequent nasotracheal suctioning.
A pulse oximeter reading is significantly less than oxygen saturation by blood gas. Which of the
following could be the cause?
A. decreased QsQt
B. decreased CVP
C. marked hypotension
D. increased SVR - C. marked hypotension
Explanation :
Pulse oximeters are also known as single wavelength spectrophotometers. There are multiple
reasons why they may read inaccurately. Those reasons include: high ambient light, the use of
fingernail polish, poor peripheral perfusion, and marked hypotension. All are correct.
Which of the following equations would help determine cardiac output?
2025
A patient is undergoing a cardiac workup and tolerance assessment while riding a stationary
bicycle. After a few minutes of observing the patient, the respiratory therapist increases the
tension to the cycle and observes the following change in blood pressure, SpO2, and heart rate:
Before After
HR 98 119
BP 122/85 mm Hg 149/98 mm Hg
SpO2 0.97 0.95
A. administer Dobutrex (dobutamine).
B. reduce the cycle tension to the previous level.
C. continue the evaluation.
D. discontinue the assessment and document. - C. continue the evaluation.
A respiratory therapist is given the charge to sterilize a bronchoscope. Which of the following
should the respiratory therapist use to accomplish sterilization?
A. Steam autoclave
B. Irradiation followed by ethylene oxide
C. Alkaline gluteraldehyde (Cidex)
D. Pasteurization - C. Alkaline gluteraldehyde (Cidex)
,On a patient receiving mechanical ventilation, it is observed that peak airway pressures have
been rising. During that same time interval, plateau pressures have been rising by
approximately the same amount. This is most suggestive of
A. increasing dynamic compliance.
B. a decrease in pulmonary atelectasis.
C. decreasing pulmonary compliance.
D. increased elasticity of interstitial pulmonary tissue. - C. decreasing pulmonary compliance.
A patient is on his second week in the intensive care unit (ICU). A tracheostomy is in place and
he is receiving ventilatory support by VC, A/C ventilation on the following settings:
FIO2 0.6
PEEP 18 cm H2O
Rate 18/min
VT 450 mL
Other data shows:
PAW 42 cm H2O
HR 110/min
PAP 34/10 mm Hg
CVP 6 mm Hg
PCWP 8 cm H2O
C.I. 2.3 L/min/m2
,ABGs
pH 7.30
PaCO2 51 mm Hg
PaO2 50 mm Hg
HCO3- 26 mEq/L
BE -4 mEq/L
Based on this information, the respiratory therapist should recommend
A. an intra-aortic balloon pump.
B. ECMO.
C. transtracheal oxygen.
D. NAVA ventilation - B. ECMO.
The current oxygen index is calculated to be above 50. Once an oxygen index is greater than 40,
the patient 1) most likely has ARDS and could benefit from extracorporeal membrane
oxygenation (ECMO). Oxygen index is calculated by: OI = (O2% x PAW) / PaO2 OI = (60 x 42) / 50
OI = OI = 50.4
A patient who has suffered a cerebral vascular accident cannot move her arms. She is recovering
in a long-term care department of a 250-bed hospital. The patient requires frequent assistance
with pulmonary hygiene as she is unable to expectorate. She has a strong and effective cough.
Which of the following devices is the most appropriate to assist with secretion removal?
, A. oral tip catheter, self-administered
B. nasal pharyngeal airway
C. tracheostomy tube
D. oral pharyngeal airway - B. nasal pharyngeal airway
Explanation :
A nasopharyngeal airway, also known as a nasal trumpet, is inserted into one of the nostrils
using a water-based lubricant. The size is determined by matching the inside diameter of the
inner naris. The Iength is approximately equal to the distance between the earlobe and the
nasal septum. When too long, the patient make cough uncontrollably. These devices help to
facilitate secretion removal for a patient requiring frequent nasotracheal suctioning.
A pulse oximeter reading is significantly less than oxygen saturation by blood gas. Which of the
following could be the cause?
A. decreased QsQt
B. decreased CVP
C. marked hypotension
D. increased SVR - C. marked hypotension
Explanation :
Pulse oximeters are also known as single wavelength spectrophotometers. There are multiple
reasons why they may read inaccurately. Those reasons include: high ambient light, the use of
fingernail polish, poor peripheral perfusion, and marked hypotension. All are correct.
Which of the following equations would help determine cardiac output?
