LINDSEY JONES EXAM #6 QUESTIONS
AND ANSWERS 100% CORRECT
which of the following should be excluded in an evaluation of a pt's ability to learn self
administration medication by MDI
a)manual dexterity
b)level of dementia
c)visual ability
d)language skills - ANSWER-c)visual ablilty
While performing manual ventilation with a self-inflating resuscitator bag through a
properly placed endotracheal tube, a respiratory therapist observes no chest rise. To
troubleshoot the problem, the therapist should?
A. assure the large bore reservoir tubing is connected.
B. adjust the PEEP valve
C. increase the flowrate.
D. check for proper function of the air inlet valve - ANSWER-D) check for proper
function of the air Intel valve.
The scenario suggests that the ET tube is properly placed, therefore the problem must
be in the resuscitator. When the therapist squeezes the device, the air is not being
delivered to the patient, which is why there is no chest rise.
Which of the following equipment is required to determine VD/VT ratio on a patient
receiving mechanical ventilation?
A. capnograph
B. pressure differential pneumotachometer
C. Fleisch pneumotachometer
D. EZ® cap CO2 detector - ANSWER-A) capnography
This question is largely about memorization. You must know what it takes to calculate of
the VD/VT ratio. Of the equipment listed only a capnograph would be helpful because it
relates end tidal CO2.
For a patient with severe mitral-valve stenosis, a balloon-tipped flow-directed pulmonary
artery catheter would be associated with which of the following clinical data?
A. PAP 19 mm Hg and PCWP 7 mmHg
B. PAP 25/8 mmHg
C. PCWP 14 mm Hg and C.O. 4 L/M
D. CVP 9 mm Hg and PAP 9 mmHg - ANSWER-c) PCWP 12 and CO 4
,Mitral valve stenosis is a problem resulting from left heart failure. Problems in the left
heart are manifested hemodynamically with high pulmonary capillary wedge pressure
(PCWP) and low or normal cardiac output.
A 38-week gestational age infant is to receive oxygen therapy by a blender set at 100%
with a heated large-volume nebulizer. To ensure the delivery of the ordered FIO2, the
respiratory therapist should properly set the nebulizer FIO2 to
A. 100%
B. 21%
C. 0%
D. 50% - ANSWER-A) 100%
When using an air-oxygen blender, oxygen percentage is predetermined prior to
entering the large volume nebulizer device. When this happens, the large volume
nebulizer should be set at 100% in order to avoid entraining additional room air and
lowering FIO2.
A respiratory therapist is asked to assist in the development of a teaching plan for a 7-
year-old asthmatic patient at home. The plan should avoid instructions regarding
A. daily monitoring of peak-expiratory flow rates
B. the water-float technique to determine MDI canister content
C. improving the patient and family's understanding of infection control
D. the proper technique for the use of MDIs - ANSWER-B) the water float tech to
determine MDI canister content
Proper MDI technique, peak-flow monitoring, and improving the understanding of
infection control are all appropriate aspects of a teaching plan for a pediatric patient.
Determining MDI canister content by floating the canister in water is never appropriate.
The proper way to assess content is by actuating the MDI and observing the output.
Which of the following pre/post bronchodilator pulmonary function test results is the
most meaningful in suggesting that a bronchodilator is indicated?
A. FEF 200-1200 increases by 17%
B. FEV1 increases by 150 mL
C. FEV1.0/FVC % increases by 10%.
D. FVC increases from 2.5 L to 2.6 L - ANSWER-A) FEV1 increases by 150 ml
, The two primary considerations in pre-and post-bronchodilator studies are (1) whether
flows increased by at least 12% or more and (2) whether the FEV1 increases by at least
200 mL. The FEF200-1200, indicating the condition of the large airways, increases by
well over 12%, and is therefore the correct choice.
The resulting flow-volume loop of a patient with pulmonary obstruction following a
bronchodilator shows an inflection point on the positive side of the graph that is 25%
taller than the loop seen prior to the bronchodilator trial. This would indicate that
A. patient may have taken a bronchodilator prior to the test
B. study should be repeated
C. patient would benefit from bronchodilators
D. vital capacity increased by 25% with a bronchodilator - ANSWER-C) pt would benefit
from a bronchodilator
An inflection point is a significant change in direction seen in various types of graphic
depictions. In this case the inflection point represents the top or "peak" of the flow
volume loop. This point is peak flow. An increase in peak flow by 25% is well above the
12% threshold that is considered significant, indicating bronchodilator therapy.
Which of the following may occur as a result of stimulation of the vagal reflex during a
suction procedure?
A. PVCs
B. decrease in blood pressure
C. first degree heart block
D. increase in heart rate - ANSWER-B) decrease in BP
Suctioning can cause a decrease in heart rate and a decrease in blood pressure. This
natural, physiological response is associated with stimulation of the vagal nerve during
suctioning. This is also called the vagal reflex
The galvanic-type oxygen analyzer is reading 5% when the respiratory therapist is
attempting to calibrate it with 100% oxygen. To remedy the problem, the therapist
should do which of the following?
A. Change the fuel cell
B. Change the electrolyte solution
AND ANSWERS 100% CORRECT
which of the following should be excluded in an evaluation of a pt's ability to learn self
administration medication by MDI
a)manual dexterity
b)level of dementia
c)visual ability
d)language skills - ANSWER-c)visual ablilty
While performing manual ventilation with a self-inflating resuscitator bag through a
properly placed endotracheal tube, a respiratory therapist observes no chest rise. To
troubleshoot the problem, the therapist should?
A. assure the large bore reservoir tubing is connected.
B. adjust the PEEP valve
C. increase the flowrate.
D. check for proper function of the air inlet valve - ANSWER-D) check for proper
function of the air Intel valve.
The scenario suggests that the ET tube is properly placed, therefore the problem must
be in the resuscitator. When the therapist squeezes the device, the air is not being
delivered to the patient, which is why there is no chest rise.
Which of the following equipment is required to determine VD/VT ratio on a patient
receiving mechanical ventilation?
A. capnograph
B. pressure differential pneumotachometer
C. Fleisch pneumotachometer
D. EZ® cap CO2 detector - ANSWER-A) capnography
This question is largely about memorization. You must know what it takes to calculate of
the VD/VT ratio. Of the equipment listed only a capnograph would be helpful because it
relates end tidal CO2.
For a patient with severe mitral-valve stenosis, a balloon-tipped flow-directed pulmonary
artery catheter would be associated with which of the following clinical data?
A. PAP 19 mm Hg and PCWP 7 mmHg
B. PAP 25/8 mmHg
C. PCWP 14 mm Hg and C.O. 4 L/M
D. CVP 9 mm Hg and PAP 9 mmHg - ANSWER-c) PCWP 12 and CO 4
,Mitral valve stenosis is a problem resulting from left heart failure. Problems in the left
heart are manifested hemodynamically with high pulmonary capillary wedge pressure
(PCWP) and low or normal cardiac output.
A 38-week gestational age infant is to receive oxygen therapy by a blender set at 100%
with a heated large-volume nebulizer. To ensure the delivery of the ordered FIO2, the
respiratory therapist should properly set the nebulizer FIO2 to
A. 100%
B. 21%
C. 0%
D. 50% - ANSWER-A) 100%
When using an air-oxygen blender, oxygen percentage is predetermined prior to
entering the large volume nebulizer device. When this happens, the large volume
nebulizer should be set at 100% in order to avoid entraining additional room air and
lowering FIO2.
A respiratory therapist is asked to assist in the development of a teaching plan for a 7-
year-old asthmatic patient at home. The plan should avoid instructions regarding
A. daily monitoring of peak-expiratory flow rates
B. the water-float technique to determine MDI canister content
C. improving the patient and family's understanding of infection control
D. the proper technique for the use of MDIs - ANSWER-B) the water float tech to
determine MDI canister content
Proper MDI technique, peak-flow monitoring, and improving the understanding of
infection control are all appropriate aspects of a teaching plan for a pediatric patient.
Determining MDI canister content by floating the canister in water is never appropriate.
The proper way to assess content is by actuating the MDI and observing the output.
Which of the following pre/post bronchodilator pulmonary function test results is the
most meaningful in suggesting that a bronchodilator is indicated?
A. FEF 200-1200 increases by 17%
B. FEV1 increases by 150 mL
C. FEV1.0/FVC % increases by 10%.
D. FVC increases from 2.5 L to 2.6 L - ANSWER-A) FEV1 increases by 150 ml
, The two primary considerations in pre-and post-bronchodilator studies are (1) whether
flows increased by at least 12% or more and (2) whether the FEV1 increases by at least
200 mL. The FEF200-1200, indicating the condition of the large airways, increases by
well over 12%, and is therefore the correct choice.
The resulting flow-volume loop of a patient with pulmonary obstruction following a
bronchodilator shows an inflection point on the positive side of the graph that is 25%
taller than the loop seen prior to the bronchodilator trial. This would indicate that
A. patient may have taken a bronchodilator prior to the test
B. study should be repeated
C. patient would benefit from bronchodilators
D. vital capacity increased by 25% with a bronchodilator - ANSWER-C) pt would benefit
from a bronchodilator
An inflection point is a significant change in direction seen in various types of graphic
depictions. In this case the inflection point represents the top or "peak" of the flow
volume loop. This point is peak flow. An increase in peak flow by 25% is well above the
12% threshold that is considered significant, indicating bronchodilator therapy.
Which of the following may occur as a result of stimulation of the vagal reflex during a
suction procedure?
A. PVCs
B. decrease in blood pressure
C. first degree heart block
D. increase in heart rate - ANSWER-B) decrease in BP
Suctioning can cause a decrease in heart rate and a decrease in blood pressure. This
natural, physiological response is associated with stimulation of the vagal nerve during
suctioning. This is also called the vagal reflex
The galvanic-type oxygen analyzer is reading 5% when the respiratory therapist is
attempting to calibrate it with 100% oxygen. To remedy the problem, the therapist
should do which of the following?
A. Change the fuel cell
B. Change the electrolyte solution
