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These data were obtained from a 70-kg (154-lb) patient on volume-controlled ventilation in the assist-control mode: Mode Assist-control FIO2 0.70 Rate 12 breaths/min VT 500 mL PEEP 8 cm H2O ABGs pH 7.42 PaCO2 43 mm Hg PaO2 172 mm Hg HCO3 23 mEq/L BE -2 mEq/L On the basis of this information, the respiratory therapist should recommend which of the following?

Which of the following hemodynamic parameter that is not within normal limits?

Your patient has evidence of retained secretions and you have an order to administer a mucolytic agent. To monitor the patient for bronchospasm during aerosol drug therapy, what actions should the RT take?

Calculate PAO2

A patient receiving volume-controlled ventilation is ordered to have PEEP initiated. Observation of which of the following values will best determine the optimal level of PEEP?

Which of the following measures should be used in assessing the adequacy of a patient’s alveolar ventilation? 1. PaO2 2. Arterial pH 3. PaCO2 4. HCO3–

For which of the following patients would you recommend against using a flow-triggered metered dose inhaler (MDI) as the sole bronchodilator delivery system?

Calculate the arterial oxygen content for a patient with the following arterial blood gas measurements: Hgb = 9g%, arterial oxygen saturation = 96%, arterial partial pressure of oxygen (PaO2) = 97 mm Hg.

A “ventilator bundle” may include which of the following? 1. Keeping the head of the bed at 30 degrees from the horizontal 2. Changing the ventilator circuits every 48 hours 3. Using a Heat Moisture exchange 4. Using noninvasive positive pressure ventilation (NPPV) whenever possible

Measurement of exhaled nitric oxide provides a test of: