physiology: deadspace_equipment_ml – R documentation

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deadspace_equipment_ml

Calculate equipment deadspace in ventilator breathing circuit

Description

There are minor brand variations between these airway devices. For the purposes of rough physiologic calculations, this function gives values based on real, widely-used equipment.

Usage

deadspace_equipment_ml(humidifier = c("adult", "infant", "none"),
  elbow = TRUE, flexible = c("none", "compressed", "extended"),
  min = 0)

Arguments

`humidifier`	Single value, if `TRUE`, the default, then we assume the adult humidifier. If `humidifier` is set to the character string `"adult"`, the results is the same as for `TRUE`. Alternatively, `"infant"` refers to the lower volume, higher resistance device.
`elbow`	Single logical value, default is `TRUE`
`flexible`	Single logical value or character string. If `FALSE`, the default, no additional flexible tubing is added. If `TRUE`, the volume of typical extended flexible tubing is added. If `"compressed"` or `"extended"` are given, the volume of flexible tubing in the given state is used.
`min`	numeric, giving the minimum number of obligatory milliliters of deadspace. The default is zero to allow calculation of additional airway elements.

Examples

deadspace_equipment_ml()
deadspace_equipment_ml(humidifier = FALSE)
deadspace_equipment_ml(humidifier = "infant", elbow = TRUE)
deadspace_equipment_ml(flexible = "extended", elbow = FALSE)
deadspace_equipment_ml(flexible = "extended", elbow = TRUE)

physiology

Calculate physiologic characteristics of awake and anesthetized adults, children and infants

v1.2.1

GPL-3

Authors

Jack O. Wasey [aut, cre, cph] (<https://orcid.org/0000-0003-3738-4637>), Bill Denney [ctb] (<https://orcid.org/0000-0002-5759-428X>)

Initial release