A patient with ARDS is receiving mechanical ventilation with the following settings:Mode:         PCVPIP:            20 cmH2Orate:            12 bpmTI:              1 secondI:E:             1:1FiO2:          0.50PEEP:        15 cmH2OVt exhaled: 6 mL/kgABGs:pH:             7.28PCO2:        55 torrPO2:          62 torrThe pulmonologist wants to maintain a PaCO2 of 40 to 45 mmHg. Which of the following would the respiratory therapist recommend?

If the PI is left at 25 cmH2O and PEEP is increased from 4 cmH2O to 8 cmH2O, which of the following will result:

A 73 year old asthmatic with chronic bronchitis and 25 pack year history of smoking is admitted into the ED. You perform a physical assessment and note the following:breath sounds: diminished with end-exhalation wheezes bibasilarRR: 35 bpmB/P 185/95accessory muscle useABGs: pH:         7.12PaCO2:   87 torrPaO2:     39 torrHCO3:    35 mEq/LWhat should be recommended at this time by the RT?

Which of the following mean airway pressures is considered potentially deleterious when applying positive airway pressure?

The tidal volume delivered by a neonatal time-cycled, positive pressure ventilator will be affectedby which of the following settings?I. oxygen concentrationII. flow rateIII. pressure differenceIV. inspiratory time

Loss of a large amount of body fat takes time, and some of that time will likely be during the _____ when a moderate restriction of energy intake is feasible and will not interfere with training.

Which of the following statements regarding energy systems is false?

During a muscle contraction, what happens immediately after calcium binds to troponin?

Tachypnea in the newborn is defined as a respiratory rate greater than what level?

Research studies suggest that the lack of food prior to exercise does not impact performance.