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Calculate the average tidal volume for a patient who has a minute ventilation of 10 L/min with a respiratory rate (RR) of 12 bpm.                                     2:6:4

A breath that is patient triggered, pressure targeted, and time cycled is which of the following?                                                      2:5:11

The receptors of the inflation reflex are most sensitive to  
  

During volume control ventilation a patient’s airway resistance increases. This change will cause which of the following to occur?                                         1:3:2

A male patient (74-kg IBW) is being ventilated with PC-CMV, f = 12/min, PIP = 20 cm H2O, TI = 1.5 seconds; the resulting flow-time scalar is shown below. The patient’s measured VT is 435 mL. ABG results on these settings are: pH 7.32, PaCO2 54 mm Hg, HCO3- 25 mEq/L. The most appropriate action to take is which of the following?

A 45-year-old female (58-kg IBW) with a past medical history of asthma arrives at the emergency department short of breath, anxious, diaphoretic, and unable to perform a peak expiratory flow measurement. She also has a combined acidosis. Breath sounds reveal the patient is not moving much air. The patient is intubated, stabilized, and transported to the ICU. The ventilator settings are: PC-CMV, f = 12/min, PIP = 30 cm H2O, FIO2 = 0.6, and PEEP = 3 cm H2O. The patient is sedated and paralyzed; the resulting ABGs are: pH 7.17, PaCO2 69.3 mm Hg, PaO2 90 mm Hg, and HCO3- 21 mEq/L after continuous bronchodilator therapy. The respiratory rate is increased to 20/min, and the next ABG results are: pH 7.26, PaCO2 58 mm Hg, PaO2 96 mm Hg, and HCO3- 22 mEq/L. The respiratory therapist should suggest which of the following at this time?

SIMV modes allow for mandatory and spontaneous breaths to occur.  The of the mandatory and spontaneous breaths improves patient comfort and safety with the mode. 

A 70-year-old, 61-inch-tall, female patient was admitted with an acute exacerbation of chronic obstructive pulmonary disease (COPD). After 12 hours of oxygen therapy, bronchodilator therapy, and intravenous corticosteroids, the patient began to show signs of clinical deterioration. Her chest x-ray revealed an enlarged heart and bilateral infiltrates. Her arterial blood gas shows acute on chronic respiratory failure. It is decided that this patient requires intubation and mechanical ventilation. The most appropriate ventilator settings for this patient include which of the following?

A 5’10” male patient with normal lungs has been intubated and requires mechanical ventilation with volume-controlled continuous mandatory ventilation (VC-CMV). The tidal volume and ventilator rate settings that should be recommended for this patient are which of the following?                                                                     2:6:11

When a patient is to be switched from continuous mandatory ventilation (CMV) to synchronized intermittent mandatory ventilation (SIMV) to facilitate weaning from mechanical ventilation, which of the following could be used in addition to SIMV to assist this process?                                                        2:5:1