CS TMC Exam 1; Questions Answers

C&S TMC Exam 1; Questions & Answers

• 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?(Ans - 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:

(Ans - 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?(Ans - 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?(Ans - 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: 1 / 4

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

• 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?(Ans - Ensure that the manual resuscitator is connected to an oxygen source 2 / 4

• 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.

• 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 manual ventilation 3 / 4

• 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

• 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 - 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?(Ans - 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

• / 4