Oxygen therapy can be delivered using a low flow or high flow system.
High flow oxygen devices ppt.
The system provides a high flow of heated humidified air to the patient via the nasal cannula.
High flow can thus be generated even though air and high pressure oxygen wall supplies are unavailable.
Oxygen loss is negligible but with these devices high concentrations of oxygen are not available.
It actually takes gas and can heat it to 37 o c with a 100 relative humidity and can deliver 0 21 1 00 fi02 at flow rates of up to 60 liters min.
These devices monitor delivered oxygen concentration supplied via a low pressure system in the delivered gas.
The type of humidification device selected will depend on the oxygen delivery system in use and the patient s requirements.
Low flow device most common device used for mild hypoxia can be set between 1 and 6 lpm 24 to 40 fio2 fio2 increases approximately 4 with each liter of o2 korupolur gj needham dm contemporary criticalcare.
Delivery devices work with different flow rates.
High flow oxygen therapy systems used in the hospital environment usually consist of a blender used with or without oxygen from a wall outlet humidifier heated tubing and nasal cannula.
It varies from 0 15l per minute.
All high flow systems require humidification.
Respiratory rate and tidal volume of the patient have no.
Page high flow gas delivery systems supply all the gas the patient needs.
The flow rate can be set on the wall tap.
The flows are such that the patient will not be entraining room air that will lower the fio2.
Oxygen delivery devices 1.
Rightward shift facilitates unloading of o2 a 40 air entrainment 10l min o2 flow will produce a total gas flow of approximately 40l min 28 air entrainment 4 l min o2 flow will produce a total gas flow of approximately 44 l min.
They include nasal cannulae.
High flow oxygen devices these devices meet the inspiratory flow of the patient and generate accurate fio2s so long as there is a good seal between the mask and the patient s face.
Indications of o2 therapy 1.
The humidifier should always be placed at a level below the patient s head.
2009 6 9 1 11 bailey p thomsen ge spuhler vj et al crit care med jan2007 35 1 139 145.
Oxygen delivery devices dr.
In this video george gives a short review differentiating between high and low flow oxygen systems.
Documented hypoxemia in adults children and infants older than 28 days arterial oxygen tension pao2 of 60 mmhg or arterial oxygen saturation sao2 of 90 in subjects breathing room air or with pao2 and or sao2 below desirable range for specific clinical situation in neonates pao2 50.
