Presentation is loading. Please wait.

Presentation is loading. Please wait.

Physical variables affecting FIO2 of nasal cannula with increasing breathing frequency (f), at flows from 1–5 L/min. Physical variables affecting FIO2.

Published byAnna Honkanen Modified over 5 years ago

Similar presentations

Presentation on theme: "Physical variables affecting FIO2 of nasal cannula with increasing breathing frequency (f), at flows from 1–5 L/min. Physical variables affecting FIO2."— Presentation transcript:

1 Physical variables affecting FIO2 of nasal cannula with increasing breathing frequency (f), at flows from 1–5 L/min. Physical variables affecting FIO2 of nasal cannula with increasing breathing frequency (f), at flows from 1–5 L/min. Graphic and equation identify multiple factors that cause an exponential decline in volume of oxygen that can be inspired with increasing f. Tidal volume (VT) and dead space (VD) were held constant. V̇O2 = oxygen uptake. TI = inspiratory time. Ttot = total respiratory cycle time. (From Reference 24.)‏ Jeffrey J Ward Respir Care 2013;58:98-122 (c) 2012 by Daedalus Enterprises, Inc.

Download ppt "Physical variables affecting FIO2 of nasal cannula with increasing breathing frequency (f), at flows from 1–5 L/min. Physical variables affecting FIO2."

Similar presentations

Modes and Settings  Tidal Volume ◦ Volume Control ◦ PRVC.

Modes and Settings  Tidal Volume ◦ Volume Control ◦ PRVC.
Effect of nasal positive expiratory pressure (PEP) on 6-min walk test (6MWT) distance and pre- to post-exercise increase in lung volumes in each individual.

Effect of nasal positive expiratory pressure (PEP) on 6-min walk test (6MWT) distance and pre- to post-exercise increase in lung volumes in each individual.
Respiration During Exercise (1)

Respiration During Exercise (1)
Humidification systems for high-flow cannulas.

Humidification systems for high-flow cannulas.
The patient is being ventilated with 2 types of breaths.

The patient is being ventilated with 2 types of breaths.
The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i.

The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i.
Airway pressure and flow waveforms during constant flow volume control ventilation, illustrating the effect of an end-inspiratory breath-hold. Airway pressure.

Airway pressure and flow waveforms during constant flow volume control ventilation, illustrating the effect of an end-inspiratory breath-hold. Airway pressure.
Example ventilator screen during nasal neurally adjusted ventilatory assist in a premature neonate (23 weeks gestational age, 560 g) with respiratory distress.

Example ventilator screen during nasal neurally adjusted ventilatory assist in a premature neonate (23 weeks gestational age, 560 g) with respiratory distress.
Schematic illustration of upper airway anatomical dead space volume (VD) during unidirectional breathing. Schematic illustration of upper airway anatomical.

Schematic illustration of upper airway anatomical dead space volume (VD) during unidirectional breathing. Schematic illustration of upper airway anatomical.
The 3-compartment lung model described by Riley and Cournand151,152 represents gas exchange in the lung in regard to the matching of alveolar gas volume.

The 3-compartment lung model described by Riley and Cournand151,152 represents gas exchange in the lung in regard to the matching of alveolar gas volume.
Flow chart of pressure support test and spontaneous breathing trial (SBT). Flow chart of pressure support test and spontaneous breathing trial (SBT). The.

Flow chart of pressure support test and spontaneous breathing trial (SBT). Flow chart of pressure support test and spontaneous breathing trial (SBT). The.
Shape-signal method of triggering combines shape signal (A) and volume (B) methods of triggering. Shape-signal method of triggering combines shape signal.

Shape-signal method of triggering combines shape signal (A) and volume (B) methods of triggering. Shape-signal method of triggering combines shape signal.
A ventilator and TTL test lung were used to simulate spontaneous breathing. A ventilator and TTL test lung were used to simulate spontaneous breathing.

A ventilator and TTL test lung were used to simulate spontaneous breathing. A ventilator and TTL test lung were used to simulate spontaneous breathing.
The high flow nasal cannula (HFNC) system incorporated an air/O2 blender with a flow meter and a heated humidifier. The high flow nasal cannula (HFNC)

The high flow nasal cannula (HFNC) system incorporated an air/O2 blender with a flow meter and a heated humidifier. The high flow nasal cannula (HFNC)
Events of Respiration.

Events of Respiration.
Pressure-controlled ventilation improves oxygenation during laparoscopic obesity surgery compared with volume-controlled ventilation  P. Cadi, T. Guenoun,

Pressure-controlled ventilation improves oxygenation during laparoscopic obesity surgery compared with volume-controlled ventilation  P. Cadi, T. Guenoun,
Even though this patient is undergoing positive-pressure mechanical ventilation, the first 4 breaths have a relatively negative pressure (ie, pressure.

Even though this patient is undergoing positive-pressure mechanical ventilation, the first 4 breaths have a relatively negative pressure (ie, pressure.
A: Pressure (green) and volume (black)/time curve in airway pressure release ventilation (APRV). A: Pressure (green) and volume (black)/time curve in airway.

A: Pressure (green) and volume (black)/time curve in airway pressure release ventilation (APRV). A: Pressure (green) and volume (black)/time curve in airway.
An example of delayed cycling during pressure-support ventilation of a patient with COPD, on a Puritan Bennett 7200 ventilator, which has a flow-termination.

An example of delayed cycling during pressure-support ventilation of a patient with COPD, on a Puritan Bennett 7200 ventilator, which has a flow-termination.
The third breath has a negative deflection (ie, below PEEP) at the end of the mechanical breath (arrow A) associated with a flow increase (arrow B), indicating.

The third breath has a negative deflection (ie, below PEEP) at the end of the mechanical breath (arrow A) associated with a flow increase (arrow B), indicating.

Similar presentations

Ads by Google