Exam (elaborations)
C&S TMC Exam 1
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Exam of 25 pages for the course C&S TMC at C&S TMC (C&S TMC Exam 1)
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C&S TMC EXAM 1 QUESTIONS ANDANSWERS GRADED A+
h- An infant is being mechanically ventilated via a time-cycled, pressure-limited ventilator. Which of the
following would occur if PEEP were increased without a corresponding increase in peak pressure? - The
tidal volume would decrease
- A physician requests the respiratory therapist to assess the upper airway function of a patient with a
fenestrated tracheostomy tube. The therapist should: - Remove the inner cannula, deflate the cuff, plug
the outer cannula
- A patient receiving sustained maximal inspiratory (SMI) treatments with a volume-oriented incentive
spirometer device begins to inhale through the device 18 times per minute. Which of the following best
explains this situation? - The patient needs re-instruction regarding the SMI therapy
- After initiating mechanical ventilation in the A/C mode for an adult male patient, the respiratory
therapist observes that the patient is agitated and having difficulty in cycling the ventilator. Which of the
following should the therapist do? - Increase the sensitivity setting
- Data recorded for a 52 kg (110 lb) mechanically ventilated patient who has a long standing history of
chronic hypercapnia are as follows:
Ventilator Settings Arterial Blood Gases
Mode: SIMV
pH: 7.36
VT: 400 mL
PaCO2: 62 mmHg
Rate: 8/min
HCO3: 34 mEq/L
FiO2: 0.35
PaO2: 61 mmHg
On the basis of this information, the respiratory therapist should: - Maintain current settings
- A respiratory therapist is manually ventilating a patient during a cardiopulmonary resuscitation
attempt. An arterial blood gas is drawn and the results are as follows:
,pH: 7.27
PaCO2: 38 mmHg
HCO3: 17 mEq/L
PaO2: 44 mmHg
Based on this information, the respiratory therapist should do which of the following? - Ensure that the
manual resuscitator is connected to an oxygen source
- A COPD patient is brought to the ED after several days of increasing respiratory distress. Baseline blood
gases are drawn and the patient is placed on oxygen at 2 LPM via nasal cannula. Data from the original
and a subsequent arterial blood sample are as follows:
Room Air Sample
pH: 7.23
PaCO2: 82 mmHg
HCO3: 33 mEq/L
PaO2: 49 mmHg
2L nasal O2
pH: 7.33
PaCO2: 66 mmHg
HCO3: 34 mEq/L
PaO2: 54 mmHg
Based on the above information, the respiratory therapist should: - Increase the oxygen flow to 3L/min
and continue to monitor.
- A 16-year-old female has just been admitted to the ED following a bicycling accident. She is receiving
supplemental oxygen via nonrebreathing mask. While standing at the bedside, the respiratory therapist
notes the onset of ataxic breathing. Which of the following should the therapist do? - Begin manual
ventilation
, - A respiratory therapist is performing a chest examination on an adult male patient. The therapist notes
the trachea is deviated to the right with flatness to percussion on the right. Which of the following best
explains these findings? - Right sided atelectasis
- A patient in the intensive care unit is receiving supplemental oxygen via 40% air-entrainment mask.
Current arterial blood gas results are as follows:
pH: 7.43
PaCO2: 54 mmHg
HCO3: 34 mEq/L
PaO2: 88 mmHg
Which of the following is the correct interpretation for these results? - Compensated metabolic alkalosis
- While a respiratory therapist is checking the oxygen setup of a patient on 2L/min nasal cannula, the
patient complains of not being able to detect any oxygen flow from the cannula. Which of the following
actions is appropriate at this time? - Tighten all connections
- One hour after the initiation of volume-controlled ventilation in the A/C mode for a 21-year-old, 178 cm
( 5 ft 10 in) tall adult male patient who sustained severe lung contusions following a motor vehicle
accident, an arterial blood gas sample was obtained. Pertinent data are as follows:
Ventilator Settings:
FiO2: 0.60
Rate: 16/min
VT: 500 mL
PEEP: 5 cmH2O
Arterial blood gases:
pH: 7.46
PaCO2: 30 mmHg
HCO3: 21 mEq/L
PaO2: 111 mmHg
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