TMC EXAM NEWEST ACTUAL EXAM

TMC EXAM NEWEST ACTUAL EXAM

QUESTIONS AND DETAILED CORRECT

ANSWERS | RESPIRATORY THERAPIST

CERTIFIED STUDYGUIDE

While monitoring a newborn utilizing a transcutaneous monitor, you notice a change in PtcO2 from 60 to 142 torr and simultaneously the (PtcCO2) changes from 37 to 2 torr. What is the most likely explanation for these changes?

• Upper airway obstruction
• Poor peripheral perfusion
• Air leak around the sensor
• Device is out of range Correct Answer Air leak around

the sensor

A patient on the general medical ward is on a 28% air entrainment mask with the flowmeter set at 5 L/min. What is the total flow delivered to the patient?

• 5 L/min
• 55 L/min
• 88 L/min
• 140 L/min Correct Answer 55/Lmin

Which of the following measurements is most indicative of pulmonary edema?

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• Heart rate of 120/min
• Blood pressure of 92/72 mm Hg
• Pulmonary artery pressure of 25/10 mm Hg
• Pulmonary capillary wedge pressure of 30 mm Hg

Correct Answer Pulmonary capillary wedge pressure of 30 mm Hg

Sleep apnea can be defined as repeated episodes of complete cessation of airflow for

• 5 seconds or longer.
• 10 seconds or longer.
• 15 seconds or longer.
• 20 seconds or longer. Correct Answer 10 seconds or

longer

A patient in the ICU receiving mechanical ventilation has just undergone a fiberoptic bronchoscopy procedure in which a tissue biopsy was collected. Immediately following the procedure, the respiratory therapist notes that the peak inspiratory pressure on the ventilator has increased.Potential causes for this include all of the following

EXCEPT

• hypoxemia.
• pneumothorax.
• pulmonary hemorrhage.
• bronchospasm/laryngospasm. Correct Answer

hypoxemia

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What size endotracheal tube would be appropriate for an adult female patient?

• 6.0 to 6.5 mm
• 6.5 to 7.0 mm
• 7.0 to 7.5 mm
• 7.5 to 8.0 mm Correct Answer 7.0 to 7.5 mm

The respiratory therapist has been asked to measure Auto-PEEP on a patient receiving mechanical ventilation.In order to do this, the therapist should

• initiate an inspiratory hold just after the next ventilator-

delivered breath.

• initiate an expiratory hold just prior to the next

ventilator-delivered breath.

• subtract Pplat from Pdyn.
• subtract set PEEP from the measured Pplat. Correct

Answer initiate an expiratory hold just prior to the next ventilator-delivered breath.

A patient who suffered trauma in an ATV accident is being monitored in the ICU. A pulmonary artery catheter has

been placed and the following data is available:

PvO2 46 torr PCWP 19 mm Hg PAP (mean) 10 mm Hg CVP 12 cm H2O Cardiac Output 3L/min

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The respiratory therapist should recommend

• IV fluid challenge
• positive inotropic agent
• inhaled nitric oxide
• diuretic therapy Correct Answer 2 and 4

What is the primary advantage of volume-controlled ventilation as compared to pressure-controlled ventilation?

• VC limits and controls PIP.
• VC provides a constant minute ventilation.
• VC ensures better patient-ventilator synchrony.
• VC delivers a decelerating flow pattern. Correct Answer

VC provides a constant minute ventilation.

Bronchial breath sounds heard over the lung periphery indicate

• narrowed airways.
• obstructed bronchi.
• lung consolidation.
• pulmonary edema. Correct Answer lung consolidation.

During a pre-operative evaluation, bedside spirometry

results are as follows: FVC 88% of predicted, FEV1 85%

of predicted, FEV1/FVC 82% of predicted and FEF25-75 81% of predicted. How should the respiratory therapist interpret these results?

• a mild restrictive disorder
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