A patient is being weaned from mechanical ventilation by placing them on a Briggs T-adaptor trials. The physician orders for 15 minute trials each hour. The following were obtained prior to the first trial:HR: 80 bpmVC: 10 mL/kgFiO2: 0.40SpO2: 94%After breathing 10 minutes on the Briggs T-adaptor, the following are measured:HR: 100 bpmVC: 5 mL/kgFiO2: 0.40SpO2: 86%What should the respiratory therapist recommend?

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?

A patient with an opiate drug overdose is unconscious and has the following arterial blood gas results on room air: pH 7.20; partial pressure of carbon dioxide (PaCO2) 88 mm Hg; partial pressure of oxygen (PaO2) 42 mm Hg; bicarbonate (HCO3-) 25 mEq/L. Which of the following best describes this patient’s condition?

The three stages of childbirth are:

A 34 week old neonate is intubated and on CPAP at 2 cmH2O on an FiO2 of 0.30. The physician orders an ABG and the results are as follows:pH 7.39PCO2 41 torrPO2 80 torrHCO3 24 mEq/LB.E. 0 mEq/LWhat should the RRT do at this time?

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?