Your mechanically ventilated patient is going to have a flexible fiberoptic bronchoscopy performed. Of what kinds of considerations must you be aware? I. The VT must be monitored for a leak.II. The inspiratory flow resistance will increase.III. The inspiratory pressure will decrease.IV. The inspiratory pressure will increase.

Which of the following would you assess immediately after a patient is placed on a ventilatory support device?1. ABGs2. patient’s airway3. patient’s vital signs

Your patient has a P(A–a)O2 of 200 mm Hg while breathing 100% oxygen. What is the estimated percentage shunt?

Calculate the tubing compliance (CT) when the measured volume is 150 mL and the static pressure is 53 cm H2O.

The number of trophic levels in an ecosystem rarely exceeds four.  What is the main reason that a fifth trophic level would not normally be found in an ecosystem?

The correct placement for the needle during decompression of a tension pneumothorax is:

A patient is receiving mechanical ventilation at home. Which of the following devices should be available to provide temporary support in the even of a power failure?

Which of the following must you verify when considering weaning an obtunded patient?I. adequate gag reflexII. no depressant drugsIII. adequate cough

Which of the following cardiovascular signs would indicate that a patient’s cardiovascular status is unstable and that weaning should NOT begin at this time?

The flow sheet below, for a patient on pressure-controlled continuous mandatory ventilation (PC-CMV), demonstrates which of the following? Time PIP(cm H2O) PEEP(cm H2O) Exhaled VT (mL) 0800 28 8 435 1000 28 8 493 1200 28 8 500