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Which of the following settings should be adjusted to change the I:E ratio for a patient receiving PEP therapy?

Which of the following factors will decrease the FIO2 delivered by a low-flow O2 system?I. short inspiratory timeII. fast rate of breathingIII. lower O2 inputIV. large minute ventilation

All of the following reduce the risk of nosocomial infection when using heated humidification systems except:

Which of the following types of humidifiers are used in clinical practice?1. heat-moisture exchanger2. passover humidifier3. bubble humidifier

Medications that break the disulfide bond and increase mucociliary or cough efficiency are:

What condition exists based on the FV Loop on the PFT?

For which of the following patients might you recommend bland aerosol therapy administration?1. patient with upper airway edema2. patient with a bypassed upper airway3. patient who must provide a sputum specimen

The amount of condensation occurring in a heated, humidified gas delivery system depends on which of the following?1. length, diameter, and mass of the circuit2. temperature differential along the circuit3. ambient temperature4. rate of gas flow through the circuit

Which of the following are necessary features to look for in selecting a heated humidifier?1. water level readily visible2. over-temperature protection3. auditory and visual alarms4. minimal temperature overshoot

75 year old COPD patient in MICU being monitored with a Swan Ganz or PAC with the following hemodynamic data:CO 4.7 L/minPCWP 8 torrCVP 9 torrmPAP 14 torrWhich of the following would most likely represent the patients condition?