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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?

Mechanical ventilation should be discontinued as quickly as possible:

The RT performs a patient-ventilator system check on a 24-year-old, 5-foot, 10-inch male patient who has been intubated because of a drug overdose. The RT notices what appears to be swelling around the patient’s upper anterior chest and neck area. Palpation elicits a tissue paper feeling. The ventilator settings are: PC-CMV, rate 12/min with no patient assist, Peak 25 cm H2O, PEEP 5 cm H2O, FIO2 0.4, TI 1.2 s. The most appropriate action for the RT to take is which of the following?