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LEWIS'S CHAPTER 28 (12 EDITION) QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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LEWIS'S CHAPTER 28 (12 EDITION) QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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LEWIS'S CHAPTER 28 (12 EDITION)QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
1. Which action would the nurse take to verify the correct placement of an oral endotracheal tube (ET)
immediately after insertion and before securing the tube?
a. Obtain a portable chest x-ray.
b. Use an end-tidal CO2 monitor.
c. Auscultate for bilateral breath sounds.
d. Observe for symmetrical chest movement - ANSWER ANS: B
End-tidal CO2 monitors are currently recommended for rapid verification of ET placement. Auscultation
for bilateral breath sounds and checking chest expansion are also used, but they
are not as accurate as end-tidal CO2 monitoring. A chest x-ray confirms the placement but is done after
the tube is secured.
2. Which action would the nurse take to maintain proper endotracheal tube (ET) cuff pressure when a
patient is on mechanical ventilation?
a. Inflate the cuff with a minimum of 10 mL of air.
b. Inflate the cuff until the pilot balloon is firm on palpation.
c. Inject air into the cuff until a manometer shows 15 mm Hg pressure.
d. Inject air into the cuff until a slight leak is heard only at peak inflation. - ANSWER ANS: D
The minimal occluding volume technique involves injecting air into the cuff until an air leak is present
only at peak inflation. the volume to inflate the cuff varies with the ET and the patient's
size. Cuff pressure should be maintained at 20 to 30 mm Hg. An accurate assessment of cuff pressure
cannot be obtained by palpating the pilot balloon.
3. The nurse notes premature ventricular contractions (PVCs) on the monitor while suctioning a patient's
endotracheal tube. Which action would the nurse take?
a. Plan to suction the patient more frequently.
b. Decrease the suction pressure to 80 mm Hg.
c. Give antidysrhythmic medications per protocol.
d. Ventilate the patient with 100% oxygen. - ANSWER ANS: D
, Dysrhythmias during suctioning may indicate hypoxemia or sympathetic nervous system
stimulation. the nurse should stop suctioning and ventilate the patient with 100% O2. There is
no indication that more frequent suctioning is needed. Lowering the suction pressure will
decrease the effectiveness of suctioning without improving the hypoxemia. Because the PVCs
occurred during suctioning, there is no need for antidysrhythmic medications (which may
have adverse effects) unless they recur when the suctioning is stopped, and patient is well
oxygenated.
Which assessment finding for a patient receiving mechanical ventilation indicates the need for
suctioning?
a. The patient was last suctioned 6 hours ago.
b. The patient's oxygen saturation drops to 93%.
c. The patient's respiratory rate is 32 breaths/min.
d. The patient has occasional audible expiratory wheezes. - ANSWER ANS: C
The increase in respiratory rate indicates that the patient may have decreased airway clearance
and requires suctioning. Suctioning is done when patient assessment data indicate that it is
needed and not on a scheduled basis. Occasional expiratory wheezes do not indicate poor
airway clearance. Suctioning the patient may induce bronchospasm and increase wheezing. An
O2 saturation of 93% is acceptable and does not suggest that immediate suctioning is needed.
5. The nurse notes thick, white secretions in the endotracheal tube (ET) of a patient who is
receiving mechanical ventilation. Which intervention will most directly treat this finding?
a. Reposition the patient every 1 to 2 hours.
b. Increase suctioning frequency to every hour.
c. Add additional water to the patient's enteral feedings.
d. Instill 5 mL of sterile saline into the ET before suctioning. - ANSWER ANS: C
Because the patient's secretions are thick, better hydration is indicated. Suctioning every hour
without any specific evidence for the need will increase the incidence of mucosal trauma and
would not address the etiology of the ineffective airway clearance. Instillation of saline does
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