TMC PRACTICE EXAM B ACTUAL QUESTIONS AND

TMC PRACTICE EXAM B (ACTUAL / ) QUESTIONS AND

VERIFIED ANSWERS GRADE A+

The respiratory therapist is reviewing a patient's chart prior to performing a bedside assessment to determine readiness for weaning from ventilatory assistance. The patient weighs 60 kg (132 lb). The therapist would expect the patient to be able to achieve a spontaneous tidal volume of

• 200 - 355 mL
• 300 - 480 mL
• 400 - 620 mL
• 600 - 720 mL - ---Answers-----B. 300 - 480 mL

The physician informs the patient that the results of his polysomnogram indicate obstructive sleep apnea. Treatment for this disorder might include

• bronchial hygiene therapy.
• respiratory stimulants.
• tracheostomy.
• negative pressure ventilation. - ---Answers-----C.

tracheostomy.

After completing oxygen rounds, the respiratory therapist must clean flowmeters that were removed from rooms where 1 / 4

no patients were receiving oxygen therapy. Which of the following methods is most appropriate for disinfection of the flowmeters?

• Steam autoclave
• Soak in acid gluteraldehyde
• Wash in Pasteurmatic
• Wipe with alcohol - ---Answers-----D. Wipe with alcohol

A 4-year-old girl is admitted to the emergency department with persistent dry coughing. Chest radiograph results reveal normal inspiration with the right lung remaining expanded on expiration. Which of the following should the respiratory therapist recommend at this time?

• Endobronchial intubation
• Arterial blood gas analysis
• Bronchoscopic examination
• Lateral neck radiograph - ---Answers-----C.

Bronchoscopic examination

Which of the following would indicate that the lung compliance of a patient on a volume-cycled ventilator is increasing?

• Plateau pressure begins to decrease
• Peak pressure begins to increase 2 / 4

• Blood pressure decreases
• Arterial PCO2 decreases - ---Answers-----A. Plateau

pressure begins to decrease

Heliox therapy is indicated for treatment of patients with post extubation stridor because of the

• ability to effectively deliver humidity.
• low density of the gas mixture.
• high molecular weight of the gas mixture.
• low risk of bronchospasm. - ---Answers-----B. low density

of the gas mixture.

A 17 year-old patient is receiving 40% oxygen via a Venturi mask following a motor vehicle accident. He suddenly develops acute shortness of breath, is diaphoretic and SpO2 is 85%. Breath sounds are vesicular on the right and extremely diminished on the left. The respiratory therapist should evaluate the patient for the presence of

• atelectasis.
• a pneumothorax.
• arterial hypertension.
• a myocardial infarction. - ---Answers-----B. a

pneumothorax.

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Which of the following would NOT be required to perform a nasal intubation?

• Magill forceps
• Stylet
• Laryngoscope
• Endotracheal tube - ---Answers-----B. Stylet

Which of the following formulas will determine the amount of physiologic deadspace for a patient?

• PAO2 - PaO2
• CaO2 - CvO2
• (PaCO2 - PECO2) / PaCO2
• CcO2 - CaO2 / CcO2 - CvO2 - ---Answers-----C. (PaCO2 -

PECO2) / PaCO2

A balloon-tipped, flow-directed catheter is positioned in the pulmonary artery with the balloon inflated. Which of the following pressures will be measured by the distal lumen?

A. CVP

B. PAP

C. PCWP

• MAP - ---Answers-----C. PCWP
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