An adult male patient, who is receiving volume-controlled ventilation, has a chest tube drainage system in place with a chest tube in the right anterior lung. Suction pressure at the wall is set to 120 mm Hg. The therapist notices profuse bubbling in the water-seal chamber. The low-volume ventiltor alarm is sounding and the digital display on the ventilator indicates a return volume of 220 mL. About which of the following clinical conditions should the respiratory therapist worry about most?

A respiratory therapist is asked to assist a physician during a diagnostic bronchoscopy procedure on a mechanically ventilated patient. What special equipment should be brought to the room?

A respiratory therapist is asked to determine a patient’s inspiratory muscle strength. Which of the following equipment is required for this evaluation?

Consider an available forward contract for wheat. The contract is has a delivery price of $5.25 per bushel for 5,000 bushels. Dealers currently stand ready to buy or sell the commodity for $5.96. If the spot price of the commodity is $5.32 at maturity, what is the net payoff of the long side of the contract?

A 33-year-old female has been rehabilitated after a motor vehicle accident where she suffered a spinal injury. She has subsequently been admitted to the emergency department (ED) with flu-like symptoms, is febrile, and is expectorating yellow sputum. Arterial blood gas results are:   pH   7.27     PaCO2 52 mm Hg   PaO2 67 mm Hg   HCO3- 25 mEq/L   BE -1 mEq/L   The respiratory therapist should recommend

A patient is receiving CPAP on a volume-controlled adult ventilator at the following settings:  CPAP      5 cm H2O     PS   5 cm H2O   FIO2   0.40  Additional data shows:  Respiratory rate     30/min     VT(spont)   220 mL   SpO2   90% The respiratory therapist should recommend

A patient in a body box performs a maneuver that shows airway resistance (RAW) to be 1.2 cm H2O/L/sec. Which of the following conditions most likely represents the patient’s condition?

Which of the following would be most beneficial in resolving microatelectasis?

A patient has a balloon-tipped, flow-directed catheter in place in the pulmonary artery. Which of the following will be obtained when extracting blood from the distal lumen of the pulmonary artery catheter?

An 84-kg (185-lb) 6-ft 1-in (185-cm) male is receiving mechanical ventilation by a volume-controlled ventilator in the assist/control mode on the following settings:  Mandatory rate   16     VT 600 mL   FIO2 0.5   PEEP 10 cm H2O     ABGs     pH 7.46   PaCO2 34 mm Hg   PO2 100 mm Hg   HCO3- 24 mEq/L   BE 0 mEq/L  Which of the following represents the most appropriate action?