An assisted breath in the pressure controlled continuous mandatory ventilation (PC-CMV) mode can be described by which of the following?
a. Time triggered, pressure limited, time cy-cled
b. Patient triggered, pressure limited, time cycled
c. Time triggered, pressure limited, pressure cycled
d. Patient triggered, volume limited, volume cycled
Q. 2 The ventilator mode that allows the patient to breathe spontaneously between operator-selected time-triggered volume and pressure-targeted breaths is which of the following?
a. Pressure support ventilation (PSV)
b. Continuous mandatory ventilation (CMV)
c. Intermittent mandatory ventilation (IMV)
d. Airway pressure release ventilation (APRV)
Q. 3 A hemodynamically unstable patient being ventilated in the volume-controlled continuous man-datory ventilation (VC-CMV) mode is triggering inspiration at a rate of 25 breaths/min and has the following arterial blood gas results:
pH 7.50, partial pressure of carbon dioxide (PaCO2) 30 mm Hg, partial pressure of oxygen (PaO2) 98 mm Hg, arterial oxygen saturation (SaO2) 100, bicarbonate (HCO3) 24 mEq/L. The respira-tory therapist should perform which of the following?
a. Extubate and administer noninvasive posi-tive pressure ventilation (NIV).
b. Change the mode to pressure-controlled continuous mandatory ventilation (PC-CMV).
c. Change the mode to volume-controlled intermittent mandatory ventilation (VC-IMV).
d. Sedate and paralyze the patient.
Q. 4 During volume control ventilation a patient's airway resistance increases. This change will cause which of the following to occur?
a. Increase in delivered volume
b. Increase in peak airway pressure
c. Decrease in plateau pressure
d. Decrease in peak airway pressure
Q. 5 A home care patient diagnosed with central sleep apnea would benefit from which of the fol-lowing modes of ventilation?
a. Pressure support ventilation (PSV)
b. Noninvasive positive pressure ventilation (NIV)
c. Continuous positive airway pressure (CPAP)
d. Pressure controlled intermittent mandatory ventilation (PC-IMV)
Q. 6 A 28-year-old male has arrived in the emergency department following a motor vehicle accident. He has a Glasgow Coma Score of 14. Chest X-ray reveals five ribs broken anteriorly in two areas each.
Physical assessment reveals paradoxical movement of the chest. Breath sounds are diminished and the trachea is midline. Arterial blood gas on nonrebreather mask is: pH 7.53, partial pressure of carbon dioxide (PaCO2) is 25 mm Hg, partial pressure of oxygen (PaO2) is 59 mm Hg, arterial oxygen saturation (SaO2) 93, bicarbonate (HCO3) 23 mEq/L. The respiratory therapist should recommend which of the following for this patient?
a. Noninvasive positive pressure ventilation (NIV) with supplemental oxygen
b. Intubation with volume-controlled con-tinuous mandatory ventilation (VC-CMV) with positive end-expiratory pressure (PEEP)
c. Mask continuous positive airway pressure (CPAP) with supplemental oxygen
d. Intubation with CPAP and pressure sup-port
Q. 7 What type of breath occurs when the ventilator controls the timing, tidal volume, or inspiratory pressure?
a. Assisted
b. Mandatory
c. Spontaneous
d. Controlled
Q. 8 Of the following breath descriptions, which one is considered spontaneous?
a. Flow triggered, pressure limited, flow cy-cled
b. Time triggered, volume limited, volume cycled
c. Pressure triggered, pressure limited, time cycled
d. Patient triggered, patient cycled, baseline pressure +5 cm H2O
Quick Reply
