NBRC TMC PRACTICE TEST BANK
Actual 400+ Questions and Answers
1.Which of the following is needed to calculate alveolar oxygen tension?
A. VD/VT, PAO2
B. BP and FiO2
C. PetCO2 and PaO2
D. QS/QT, deadspace
ANS: B.
Barometric pressure, FiO2, and PaO2 are all included in the formula (BP
stands for barometric pressure)
2.L/min/m2 is the unit of measure for
A. Systemic vascular resistance
B. Cardiac output
C. Cardiac index
D. Stroke volume
ANS: C.
3.A spontaneously breathing patient has the following arterial blood
gas results:
pH 7.38 PaCO2 42 mmHgPaO2 76 mmHgHCO3- 24 mEq/LBE 0 mEq/L
Which of the following supplemental oxygen levels is most appropriate?
A. 2 L/min nasal cannula
,B. 5 L/min nasal cannula
C. non-rebreathing mask
D. Venturi mask at 30%
ANS: B.
A patient who is showing signs of hypoxemia should receive
supplemental oxygen. If the patient is not a COPD patient and the
situation is not an emergency, then the proper supplemental oxygen is
an adult therapeutic dose, which is 40% to 55%. Of the options
available only 5 L/min nasal cannula will approach this. Other options
are either insufficient or too much.
4.Left heart failure would be manifested in which of the following values?
A. CVP and mPAP
B. mPAP and wedge pressure
C. MAP and SVR
D. cardiac output and wedge pressure
ANS: D.
The function of the left heart, specifically the left ventricle, is best
assessed hemo- dynamically by looking at those values that precede
and come after the left heart. In this case pulmonary capillary wedge
pressure and cardiac output (or cardiac index) are the values found
before and after the left heart.
5.Which of the following findings is most closely associated with
increased airway resistance?
,A. reduced SpO2
B. accessory muscle use
C. altered P50
D. increased PetCO2
ANS: B.
Of the options given, use of accessory muscles is most closely
associated with an increase in airway resistance. This is especially true
with patients who have asthma or other types of upper airway
inflammation or bronchoconstriction.
6.For a patient receiving volume-controlled mechanical ventilation, the
lower inflection point on a pressure-volume loop can best be described as:
A. amount of pressure required to keep the alveoli and small airways open
B. optimal PEEP
C. minimal PEEP
D. upper limit of residual volume
ANS: A.
The lowest inflection point on a pressure-volume ventilator graphic is
an indication of the minimum pressure needed to keep alveoli open.
7.The results of a V/Q scan shows poor perfusion with adequate ventilation.
A chest radiograph shows a wedge-shaped infiltrate over the right lung
field. The patient most likely has
A. fluid overload
B. ARDS
, C. a pulmonary embolism
D. pneumonia
ANS: C.
A VQ scan that shows poor perfusion but adequate ventilation is most
closely associated with a pulmonary embolism. Supportive data is found
in the radiological report of wedge-shaped infiltrates.
8.The respiratory therapist notes in the medical record of a 65-year-old male
that the patient is ordered to receive bronchodilator therapy with Albuterol.
The therapist also notes the patient is receiving beta-blocker medication.
The therapist should recommend
A. Administer Dexamethasone (Decadron) in place of Albuterol
B. Add Xopenex to the bronchodilator regimen
C. Replace Albuterol with Beclamethasone (Beclovent)
D. Switch from Albuterol to ipratropium bromide (Atrovent)
ANS: D.
Because albuterol is a beta-agonist medication, patients who are taking
beta-block- ers should utilize other bronchodilation medication.
9.A hospital has an extremely low incidence of ventilator-associated
pneumo- nia. To which of the following reasons may this be attributed?
A. periodic discontinuation of sedation
B. use of respiratory precautions with the population
C. diversion of infectious patients to other facilities
D. broad use of prophylactic antibiotics
Actual 400+ Questions and Answers
1.Which of the following is needed to calculate alveolar oxygen tension?
A. VD/VT, PAO2
B. BP and FiO2
C. PetCO2 and PaO2
D. QS/QT, deadspace
ANS: B.
Barometric pressure, FiO2, and PaO2 are all included in the formula (BP
stands for barometric pressure)
2.L/min/m2 is the unit of measure for
A. Systemic vascular resistance
B. Cardiac output
C. Cardiac index
D. Stroke volume
ANS: C.
3.A spontaneously breathing patient has the following arterial blood
gas results:
pH 7.38 PaCO2 42 mmHgPaO2 76 mmHgHCO3- 24 mEq/LBE 0 mEq/L
Which of the following supplemental oxygen levels is most appropriate?
A. 2 L/min nasal cannula
,B. 5 L/min nasal cannula
C. non-rebreathing mask
D. Venturi mask at 30%
ANS: B.
A patient who is showing signs of hypoxemia should receive
supplemental oxygen. If the patient is not a COPD patient and the
situation is not an emergency, then the proper supplemental oxygen is
an adult therapeutic dose, which is 40% to 55%. Of the options
available only 5 L/min nasal cannula will approach this. Other options
are either insufficient or too much.
4.Left heart failure would be manifested in which of the following values?
A. CVP and mPAP
B. mPAP and wedge pressure
C. MAP and SVR
D. cardiac output and wedge pressure
ANS: D.
The function of the left heart, specifically the left ventricle, is best
assessed hemo- dynamically by looking at those values that precede
and come after the left heart. In this case pulmonary capillary wedge
pressure and cardiac output (or cardiac index) are the values found
before and after the left heart.
5.Which of the following findings is most closely associated with
increased airway resistance?
,A. reduced SpO2
B. accessory muscle use
C. altered P50
D. increased PetCO2
ANS: B.
Of the options given, use of accessory muscles is most closely
associated with an increase in airway resistance. This is especially true
with patients who have asthma or other types of upper airway
inflammation or bronchoconstriction.
6.For a patient receiving volume-controlled mechanical ventilation, the
lower inflection point on a pressure-volume loop can best be described as:
A. amount of pressure required to keep the alveoli and small airways open
B. optimal PEEP
C. minimal PEEP
D. upper limit of residual volume
ANS: A.
The lowest inflection point on a pressure-volume ventilator graphic is
an indication of the minimum pressure needed to keep alveoli open.
7.The results of a V/Q scan shows poor perfusion with adequate ventilation.
A chest radiograph shows a wedge-shaped infiltrate over the right lung
field. The patient most likely has
A. fluid overload
B. ARDS
, C. a pulmonary embolism
D. pneumonia
ANS: C.
A VQ scan that shows poor perfusion but adequate ventilation is most
closely associated with a pulmonary embolism. Supportive data is found
in the radiological report of wedge-shaped infiltrates.
8.The respiratory therapist notes in the medical record of a 65-year-old male
that the patient is ordered to receive bronchodilator therapy with Albuterol.
The therapist also notes the patient is receiving beta-blocker medication.
The therapist should recommend
A. Administer Dexamethasone (Decadron) in place of Albuterol
B. Add Xopenex to the bronchodilator regimen
C. Replace Albuterol with Beclamethasone (Beclovent)
D. Switch from Albuterol to ipratropium bromide (Atrovent)
ANS: D.
Because albuterol is a beta-agonist medication, patients who are taking
beta-block- ers should utilize other bronchodilation medication.
9.A hospital has an extremely low incidence of ventilator-associated
pneumo- nia. To which of the following reasons may this be attributed?
A. periodic discontinuation of sedation
B. use of respiratory precautions with the population
C. diversion of infectious patients to other facilities
D. broad use of prophylactic antibiotics
