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While assessing a 64-year-old patient receiving volume-controlled ventilation, you note that the peak airway pressure has decreased from 52 cm H2O to 32 cm H2O. There have been no other changes to the ventilator settings. Which of the following action would be appropriate at this time? 

A 75 kg (165 lb) male patient is being mechanically ventilated following coronary artery bypass surgery. He is currently on the following settings:Mode: VC, SIMVSet rate: 10 br/minTotal rate: 14 br/minFiO2: 0.4Vt: 650 mLPEEP: 8 cm H2OArterial blood gas results show:pH: 7.41PCO2: 44 torrPaO2: 85 torrHCO3-: 23 mEq/LYou would recommend which of the following at this time?

Which of the following parameters are acceptable for weaning a patient from continuous mechanical ventilation?I. VD/Vt: 65%II. MIP: -18 cm H2OIII. Qs/Qt: 10%IV. A-aDO2: 12 torr (21% oxygen)

Use of an externally powered, small-volume nebulizer for aerosol delivery during partial ventilatory support with PSV may cause which of the following? I. High VT alarm activation II. Triggering difficulties III. High-pressure alarm activation IV. Ventilator inoperative alarm

A 48-year-old patient is receiving mechanical ventilation following a hernia repair. He is 6′ tall and weighs 75 kg (165 lb). Prior to initiating a spontaneous breathing trial, the therapist notes the following informationFIO2: 0.35SIMV mandatory rate: 6/minTotal rate: 14/minVt: 600 mLMIP: -26 cm H2OSpont Vt: 400 mLArterial blood gas results show:PH: 7.39PaCO2: 42 torrPaO2: 88 torrHCO3-: 23 mEq/LThe patient is to be placed on CPAP with an FIO2 of 0.40. Five minutes into the SBT, his respiratory rate increases to 28/min., heart rate from 110/min. to 135/min. and blood pressure changes from 112/70 mm Hg to 140/88 mm Hg. At this time, the therapist should

The therapist is about to establish bilevel NPPV on a patient who has COPD and has a spontaneous respiratory rate of 14 breaths/minute. Which of the following initial ventilator settings are appropriate for this patient? I. Adjust the sensitivity setting to enable pressure triggering. II. Set an IPAP of 12 cm H2O and an EPAP of 6 cm H2O. III. Institute a backup respiratory rate of 16 breaths/minute. IV. Initiate a PPEP of 10 cm H2O.

Which of the following drugs are associated with over hydration of secretions 

A patient is receiving mechanical ventilation at the following settings: Mode: SIMV Mandatory rate: 12 Total rate: 12 FiO2: 0.50 Vt: 750 ml Peak flow: 50 L/min PEEP: 5 cm H2O The following volume-pressure loop is observed. loop image.png Which of the following changes should the therapist recommend?

During mechanical ventilation of a patient with ARDS, the PaO2 = 38 mm Hg and the FIO2 = 0.5. If the desired PaO2 is 50 mm Hg, the FIO2 needs to be changed to which of the following?

What is the significance of the quantitative difference between the IPAP and EPAP settings on a bilevel pressure-limited ventilator?