C&S TMC EXAM 1 Questions and Answers
1.- An infant is being mechanically ventilated via a time-cycled, pressure-
lim- ited ventilator. Which of the following would occur if PEEP were
increased without a corresponding increase in peak pressure
ANS The tidal volume would decrease
2.- A physician requests the respiratory therapist to assess the upper
airway function of a patient with a fenestrated tracheostomy tube. The
therapist should
ANS Remove the inner cannula, deflate the cuff, plug the outer cannula
3.- 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
situa- tion
ANS The patient needs re-instruction regarding the SMI therapy
4.- 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
ANS Increase the sensitivity setting
,5.- 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
ANS Maintain current settings
6.- A respiratory therapist is manually ventilating a patient during a
cardiopul- monary 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
,ANS Ensure that the manual resuscitator is connected to an oxygen
source
7.- 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
ANS Increase the oxygen flow to 3L/min and continue to monitor.
8.- 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
ANS Begin man- ual ventilation
9.- 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
ANS Right sided atelectasis
10.- 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
ANS Com- pensated metabolic alkalosis
11.- 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
1.- An infant is being mechanically ventilated via a time-cycled, pressure-
lim- ited ventilator. Which of the following would occur if PEEP were
increased without a corresponding increase in peak pressure
ANS The tidal volume would decrease
2.- A physician requests the respiratory therapist to assess the upper
airway function of a patient with a fenestrated tracheostomy tube. The
therapist should
ANS Remove the inner cannula, deflate the cuff, plug the outer cannula
3.- 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
situa- tion
ANS The patient needs re-instruction regarding the SMI therapy
4.- 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
ANS Increase the sensitivity setting
,5.- 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
ANS Maintain current settings
6.- A respiratory therapist is manually ventilating a patient during a
cardiopul- monary 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
,ANS Ensure that the manual resuscitator is connected to an oxygen
source
7.- 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
ANS Increase the oxygen flow to 3L/min and continue to monitor.
8.- 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
ANS Begin man- ual ventilation
9.- 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
ANS Right sided atelectasis
10.- 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
ANS Com- pensated metabolic alkalosis
11.- 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
