Flow waveform: Difference between revisions

Revision as of 05:32, 12 July 2021

Revision as of 22:20, 27 January 2022

Line 1:

{{Multiple issues|

{{one source|date=July 2020}}

The '''Flow waveform''' for the human [[respiratory system]] in lung ventilators, is the shape of air flow that is blown into the patient's [[airway]]s. Computer technology allows the practitioner to select particular flow patterns, along with volume and pressure settings, in order to achieve the best patient outcomes and reduce complications experienced while on a mechanical ventilator.

{{context|date=October 2011}}

}}

==Description==

In lung ventilators '''Flow waveform''' is the shape of air flow that is blown into the patient's [[airway]]s. Computer technology allows the practitioner to select particular flow patterns, along with volume and pressure settings, in order to achieve the best patient outcomes and reduce complications experienced while on a mechanical ventilator. Modern [[ventilators|lung ventilators]] are able to generate three basic wave forms of flow: [[Square wave|squared]] waveform, descending waveform, and [[sinusoidal]] waveform. A square waveform pattern is found on most mechanical ventilators, old and new, and achieves a constant flow. During the inspiration phase, the flow rate rises to a predetermined level and remains constant, thus giving the appearance of a square wave form. This produces the shortest inspiratory time compared to other flow patterns. A decelerating flow waveform pattern, also known as descending ramp, achieves the highest level of flow at the start of a breath, when patient flow demand is often greatest.<ref>{{cite web |title=A Review of Waveform Patterns for Mechanically Ventilated Patients: Constant Flow Versus Decelerating-Flow Waveform Patterns |url=http://www.rtmagazine.com/2012/01/a-review-of-waveform-patterns-for-mechanically-ventilated-patients-constant-flow-versus-decelerating-flow-waveform-patterns/ |website=RT Magazine |accessdate=15 February 2019}}</ref>

Modern [[ventilators|lung ventilators]] are able to generate three basic wave forms of flow: [[Square wave|squared]] waveform, descending waveform, and [[sinusoidal]] waveform. A square waveform pattern is found on most mechanical ventilators, old and new, and achieves a constant flow.

In lung ventilators '''Flow waveform''' is the shape of air flow that is blown into the patient's [[airway]]s. Computer technology allows the practitioner to select particular flow patterns, along with volume and pressure settings, in order to achieve the best patient outcomes and reduce complications experienced while on a mechanical ventilator. Modern [[ventilators|lung ventilators]] are able to generate three basic wave forms of flow: [[Square wave|squared]] waveform, descending waveform, and [[sinusoidal]] waveform. A square waveform pattern is found on most mechanical ventilators, old and new, and achieves a constant flow. During the inspiration phase, the flow rate rises to a predetermined level and remains constant, thus giving the appearance of a square wave form. This produces the shortest inspiratory time compared to other flow patterns. A decelerating flow waveform pattern, also known as descending ramp, achieves the highest level of flow at the start of a breath, when patient flow demand is often greatest.<ref>{{cite web |title=A Review of Waveform Patterns for Mechanically Ventilated Patients: Constant Flow Versus Decelerating-Flow Waveform Patterns |url=http://www.rtmagazine.com/2012/01/a-review-of-waveform-patterns-for-mechanically-ventilated-patients-constant-flow-versus-decelerating-flow-waveform-patterns/ |website=RT Magazine |accessdate=15 February 2019}}</ref>

==References==