Ventilator-associated condition (VAC)

FiO₂: fraction of inspired oxygen; PEEP: positive end expiratory pressure; VAE: ventilator-associated event.
* Daily minimum defined by lowest value of FiO₂ or PEEP during a calendar day that is maintained for at least one hour.
¶ Daily minimum PEEP values of 0 to 5 cm H₂O are considered equivalent for the purposes of VAE surveillance.

Reproduced from: National Healthcare Safety Network (NHSN). Surveillance for Ventilator-associated Events. Device-associated Module: Ventilator-Associated Event Protocol, January 2014. Centers for Disease Control and Prevention. Available at: http://www.cdc.gov/nhsn/acute-care-hospital/vae/ (Accessed August 22, 2014).

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