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An adult male patient on ventilatory support has just been intubated with a 7.0 mm oral endotracheal
tube equipped with a high residual volume low-pressure cuff. When sealing the cuff to achieve a
minimal occluding volume, you note a cuff pressure of 45 cm H20 What is the most likely problem?
A. The cuff pilot balloon and line is obstructed
B. The pressure manometer is out of calibration
C. The tube chosen is too small for the patient
D. The tube is in the right mainstem bronchus ...ANSWER...C. The tube chosen is too small for the
patient
To achieve the highest O2 concentration, you would select which of the following devices?
A. Venturi mask
B. Face tent
C. Nonrebreathing mask
D. Simple oxygen mask ...ANSWER...C. Nonrebreathing mask
You are asked to position a patient for orotracheal intubation You should place the patient's head
A. In the sniffing position
B. Straight with the torso, with the neck hyperextended
C. Tilted forward toward the chest
D. Turned to the right, with the neck hyperextended ...ANSWER...A. In the sniffing position
What maximum flow would you apply to an 8 year-old child receiving O2 therapy via a high flow nasal
cannula?
A. 5 L/min
,B. 10 L/min
C. 15 L/min
D. 20 L/min ...ANSWER...D. 20 L/min
A patient is intubated with an appropriate size endotracheal tube and is being ventilated with a positive
pressure ventilator. During inspiration, air is heard at the mouth. Which of the following should be
done?
A. Check the cuff inflation
B. Suction the patient
C. Order a chest X-ray
D. Replace the tube ...ANSWER...A. Check the cuff inflation
A galvanic oxygen analyzer is being used to monitor a mechanically ventilated patient The patient is
receiving 100% oxygen, and the analyzer registers 104%. Which of the following is the most likely cause
for this?
A. The analyzer requires calibration
B. The analyzer probe has water condensation on its surface
C. The ventilator's blending unit requires adjustment
D. The batteries in the analyzer need to be changed ...ANSWER...A. The analyzer requires calibration
A patient has a pH of 7.58 and a PaCO2 of 25 torr. Based on these data, what is the primary acid-base
disturbance?
A. Respiratory alkalosis
B. Metabolic acidosis
C. Respiratory acidosis
D. Metabolic alkalosis ...ANSWER...A. Respiratory alkalosis
To change the level of negative pressure delivered by a pleural drainage system, you would
A. Adjust the vacuum level on the suction regulator
B. Adjust the water level in the suction control chamber
, C. Adjust the water level in the water seal chamber
D. Adjust the size of the atmospheric vent ...ANSWER...B. Adjust the water level in the suction control
chamber
During a single-breath capnogram, the sharp downstroke and return to baseline that normally occurs
after the end-tidal point indicate:
A. Exhalation of mainly deadspace gas
B. Inspiration of fresh respiratory gas
C. Exhalation of mixed alveolar/deadspace gas
D. Exhalation of mainly alveolar gas ...ANSWER...B. Inspiration of fresh respiratory gas
Bedside spirometry performed on a patient reveals the following: Respiratory rate = 22 Tidal volume =
360 mL Dead space = 150 mL Inspiratory capacity = 1.0 L Based on these data, what is the patient's
minute ventilation?
A. 3.3 L/min
B. 4.6 L/min
C. 7.9 L/min
D. 22.0 L/min ...ANSWER...C. 7.9 L/min
You are monitoring a recent postoperative craniotomy patient who is being mechanically ventilated and
has an ICP of 22 mm Ng_ The latest ABG results are as follows: Blood Gases pH 7.35 PaCO2 47 mm Hg
HCO3 25 mEq/L BE 0 Pa02 89 mm Hg Sa02 96% Based on this information, which of the following is the
most acceptable action?
A. Maintain the current settings
B. Decrease the tidal volume
C. Increase the minute ventilation
D. Add 10 cm H20 PEEP ...ANSWER...A. Maintain the current settings
Oropharyngeal and nasopharyngeal airways helps restore airway patency by:
A. Providing a secure route into the larynx and trachea
B. Separating the tongue from the posterior pharyngeal wall