Peak inspiratory pressure

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Peak inspiratory pressure (PIP) is the highest level of pressure applied to the lungs during inhalation.[1] In mechanical ventilation the number reflects a positive pressure in centimeters of water pressure (cmH2O). In normal breathing, it may sometimes be referred to as the maximal inspiratory pressure (MIPO), which is a negative value.[2] Peak inspiratory pressure increases with any airway resistance. Things that may increase PIP could be increased secretions, bronchospasm, biting down on ventilation tubing, and decreased lung compliance. PIP should never be chronically higher than 40(cmH2O) unless the patient has Acute Respiratory Distress Syndrome.

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  1. ^ Rose L (2010). "Clinical application of ventilator modes: Ventilatory strategies for lung protection.". Aust Crit Care 23 (2): 71–80. doi:10.1016/j.aucc.2010.03.003. PMID 20378369. 
  2. ^ Sarkar S, Donn SM (2007) In support of pressure support. Clin Perinatol 34 (1):117-28, vii. doi:10.1016/j.clp.2006.12.010 PMID 17394934