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Miscellanea
Theme: Non-invasive positive pressure ventilation (NiPPV) in the ED
  1. Michael Davey1,2
  1. 1Emergency Department, Royal Adelaide Hospital, Adelaide, South Australia
  2. 2Division of Acute Care Medicine, University of Adelaide, South Australia
  1. Correspondence to Michael Davey, Emergency Department, Royal Adelaide Hospital, Adelaide 5000, South Australia; michael.davey{at}health.sa.gov.au

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Question 1

Which of the following are true regarding the physics of bilevel positive airway pressure (BPAP) and continuous positive airway pressure (CPAP) ventilatory assistance?

  1. Gas delivery by BPAP is volume regulated.

  2. A major advantage of BPAP is the delivery of a known, constant fractional inspiratory oxygen concentration (Fio2) according to the rate of supplemental oxygen entrained.

  3. A major advantage of NiPPV devices delivering CPAP using a gas reservoir is the delivery of a known, constant Fio2 according to the rate of supplemental oxygen entrained.

  4. In BPAP, inspiratory phase pressure must be set lower than expiratory phase pressure.

Question 2

Which of the following are true regarding the efficacy of BPAP and CPAP?

  1. Current evidence supports the use of CPAP in acute, …

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