Delivery devices work with different flow rates.
List of high flow oxygen devices.
Comparing the fraction of inspired oxygen fio2 in the air to a portable oxygen device is expressed as a percentage.
The percentage of oxygen you are receiving from a given flow rate is not a precise science but there are some guidelines you can rely on for a relatively accurate estimate.
High flow devices systems trans tracheal cathetres venturi mask aerosol mask tracheostomy collars t piece non rebreathing mask with reservoir and one way valve high humidity face tents 12.
2 low flow systems provide oxygen at flow rates that are lower than patients inspiratory demands.
The type of humidification device selected will depend on the oxygen delivery system in use and the patient s requirements.
They include nasal cannulae.
Flow rate 1 4l min 4l will dry the nose 2l is more comfortable.
The indications advantages and disadvantages of each device and delivery system are presented.
Oxygen percentage delivery can be inconsistent or precise depending on the type of administration device selected.
The natural air we breathe contains 21 oxygen 21.
Remember this is not a hard and fast 6 liters per minute rule it is relative to the patient s own minute ventilation which will change based on their physiologic status activity and from person to person.
All high flow systems require humidification.
Oxygen therapy can be delivered using a low flow or high flow system.
The percentage of oxygen inspired depends on the flow rate and the delivery device.
Thus when the total ventilation exceeds the capacity of the oxygen reservoir room air is entrained.
Oxygen use has extended from inpatient to outpatient settings for patients with chronic pulmonary diseases and complications of hypoxaemia.
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This article presents an overview of oxygen devices oxygen concentrators compressed gas cylinders and liquid oxygen and delivery systems high and low flow.
The system provides a high flow of heated humidified air to the patient via the nasal cannula.
Conversely high flow systems are going to deliver oxygen at a rate higher than the patient s minute ventilation.
Low flow oxygen devices nasal cannula simple face mask partial rebreather mask 11.
Oxygen administration can be delivered via low flow or high flow systems with humidity or not and with a reservoir or not.
Oxygen delivery devices range from very simple and inexpensive designs to more complex and costly.
Oxygen delivery systems are generally classified as low flow or variable performance devices and high flow or fixed performance devices.
The humidifier should always be placed at a level below the patient s head.
Start studying 101 high flow oxygen devices.
