TMC Exam C Questions Verified

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TMC Exam C Questions & Verified Answers 1.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 Answer a. manual dexterity 2.Which of the following would be most beneficial in resolving microatelecta- sis?a.chest tubes b.percutaneous ventilation c.thoracentesis d.bronchoscopy Answer d. bronchoscopy 3.A 45 year-old patient is recovering in the intensive care unit after undergo- ing a surgical procedure to repair a hernia. The patient remains unconscious. To prevent soft tissue obstruction, the respiratory therapist should recom- mend a(n) 1 / 4

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a.double-lumen endobronchial tube b.oropharyngeal airway c.bite block d.nasopharyngeal airway Answer b. oropharyngeal airway 4.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 d.Run 2 only Answer d. Run 2 only 5.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 2 / 4

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d.VD/VT and ABG Answer a. ABG and alveolar oxygen tension 6.A patient with increased airway resistance from a fixed upper airway ob- struction would benefit most from which of the following?a.bronchodilator therapy b.epinephrine c.heliox therapy d.aerosolized atropine Answer c. heliox therapy 7.Evaluating MIP (maximum inspiratory pressure) is most useful in evaluating which of the following?a.presence of a restrictive pulmonary defect b.effectiveness of cough c.presence of obstructive pulmonary defect d.inspiratory muscle strength Answer d. inspiratory muscle strength 8.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 3 / 4

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d.leak in the tubing Answer b. excess water in the tubing 9.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?a.examine the ventilator circuit for proper connections b.obtain a larger test lung c.increase the set tidal volume to 900 mL d.obtain a smaller test lung Answer a. examine the ventilator circuit for proper connections 10.During the preoperational test of the ventilator, the respiratory therapist notices the galvanic analyzer on the ventilator is reading erroneously low. Which of the following can the respiratory therapist do to correct the prob- lem?a.replace the analyzer batteries b.replace the electrolyte solution in the analyzer c.tag the ventilator as non-functional and avoid placing it in service d.change the fuel cell

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