TMC Exam C Questions and Answers
Graded A+
The respiratory therapist should evaluate which of the following to develop a
teaching plan for a patient who will be using a small volume nebulizer at home?
a. manual dexterity
b. highest grade level achieved in school
c. spousal support
d. English speaking proficiency - Correct answer-a. manual dexterity
Which of the following would be most beneficial in resolving microatelectasis?
a. chest tubes
b. percutaneous ventilation
c. thoracentesis
d. bronchoscopy - Correct answer-d. bronchoscopy
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,A 45 year-old patient is recovering in the intensive care unit after undergoing a
surgical procedure to repair a hernia. The patient remains unconscious. To prevent
soft tissue obstruction, the respiratory therapist should recommend a(n)
a. double-lumen endobronchial tube
b. oropharyngeal airway
c. bite block
d. nasopharyngeal airway - Correct answer-b. oropharyngeal airway
Quality control material has published values for pH of 7.20, PO2 of 65 mmHg.
Documentation indicates the range of pH is 0.5% and is 3% for PO2. Machine
results are as follows:
Run 1: pH 7.19, PO2 64
Run 2: pH 7.10, PO2 69
Run 3: pH 7.21, PO2 65
Which quality control run(s) indicate the machine is out of control?
a. Run 1 and 2
b. Run 2 and 3
c. Run 3 only
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,d. Run 2 only - Correct answer-d. Run 2 only
A respiratory therapist is considering a patient's readiness to wean from mechanical
ventilation. To determine the A-aDO2, the therapist will need which of the
following?
a. ABG and alveolar oxygen tension
b. VD/VT and PAO2
c. CaO2 and PAO2
d. VD/VT and ABG - Correct answer-a. ABG and alveolar oxygen tension
A patient with increased airway resistance from a fixed upper airway obstruction
would benefit most from which of the following?
a. bronchodilator therapy
b. epinephrine
c. heliox therapy
d. aerosolized atropine - Correct answer-c. heliox therapy
Evaluating MIP (maximum inspiratory pressure) is most useful in evaluating which
of the following?
a. presence of a restrictive pulmonary defect
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, b. effectiveness of cough
c. presence of obstructive pulmonary defect
d. inspiratory muscle strength - Correct answer-d. inspiratory muscle strength
An air-entrainment jet nebulizer is set at 50%. The respiratory therapist analyzes
the oxygen coming from the end of the tubing and finds it is 60%. Which of the
following most likely explains this finding?
a. poorly calibrate analyzer
b. excess water in the tubing
c. low flow through the jet orifice
d. leak in the tubing - Correct answer-b. excess water in the tubing
During a preoperational test of the ventilator with a test lung, the respiratory
therapist notes a return tidal volume of 600 cc. Ventilator settings are:
Mode: Assist/control
FiO2: 0.50
Mandatory rate: 10
VT: 750 mL
What action should the therapist take?
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Graded A+
The respiratory therapist should evaluate which of the following to develop a
teaching plan for a patient who will be using a small volume nebulizer at home?
a. manual dexterity
b. highest grade level achieved in school
c. spousal support
d. English speaking proficiency - Correct answer-a. manual dexterity
Which of the following would be most beneficial in resolving microatelectasis?
a. chest tubes
b. percutaneous ventilation
c. thoracentesis
d. bronchoscopy - Correct answer-d. bronchoscopy
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,A 45 year-old patient is recovering in the intensive care unit after undergoing a
surgical procedure to repair a hernia. The patient remains unconscious. To prevent
soft tissue obstruction, the respiratory therapist should recommend a(n)
a. double-lumen endobronchial tube
b. oropharyngeal airway
c. bite block
d. nasopharyngeal airway - Correct answer-b. oropharyngeal airway
Quality control material has published values for pH of 7.20, PO2 of 65 mmHg.
Documentation indicates the range of pH is 0.5% and is 3% for PO2. Machine
results are as follows:
Run 1: pH 7.19, PO2 64
Run 2: pH 7.10, PO2 69
Run 3: pH 7.21, PO2 65
Which quality control run(s) indicate the machine is out of control?
a. Run 1 and 2
b. Run 2 and 3
c. Run 3 only
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,d. Run 2 only - Correct answer-d. Run 2 only
A respiratory therapist is considering a patient's readiness to wean from mechanical
ventilation. To determine the A-aDO2, the therapist will need which of the
following?
a. ABG and alveolar oxygen tension
b. VD/VT and PAO2
c. CaO2 and PAO2
d. VD/VT and ABG - Correct answer-a. ABG and alveolar oxygen tension
A patient with increased airway resistance from a fixed upper airway obstruction
would benefit most from which of the following?
a. bronchodilator therapy
b. epinephrine
c. heliox therapy
d. aerosolized atropine - Correct answer-c. heliox therapy
Evaluating MIP (maximum inspiratory pressure) is most useful in evaluating which
of the following?
a. presence of a restrictive pulmonary defect
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, b. effectiveness of cough
c. presence of obstructive pulmonary defect
d. inspiratory muscle strength - Correct answer-d. inspiratory muscle strength
An air-entrainment jet nebulizer is set at 50%. The respiratory therapist analyzes
the oxygen coming from the end of the tubing and finds it is 60%. Which of the
following most likely explains this finding?
a. poorly calibrate analyzer
b. excess water in the tubing
c. low flow through the jet orifice
d. leak in the tubing - Correct answer-b. excess water in the tubing
During a preoperational test of the ventilator with a test lung, the respiratory
therapist notes a return tidal volume of 600 cc. Ventilator settings are:
Mode: Assist/control
FiO2: 0.50
Mandatory rate: 10
VT: 750 mL
What action should the therapist take?
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
