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  • Writer's pictureLungtreater

High Flow Nasal Therapy

We have received a large number of inquiries regarding High-Flow Nasal Therapy (HFNT) and thought it might be helpful to document our understanding for our partners. High Flow Therapy is not new. Advances in device performance have allowed a multitude of products to be presented to the market. The requirements for patient care are dependent on the patients needs; specifically the deficit intended to treat. In making this statement I wish to emphasize the basics of gas therapy. Oxygen deficits are treated two ways – by increasing Oxygen levels (FiO2 aka O2%) or by increasing the partial pressures of gases in the lung using PEEP or Mean Airway Pressure. CO2 and dead-space issues are treated through flow and of course flow over time (volume).


As a skilled practitioner my preference is to have control over the aforementioned parameters, therefore in the Acute Care Environment, I prefer delivering high flow therapy via an Air Oxygen Blender connected to an active humidifier that allows me to control both heater plate and circuit target temperatures and of course the interface. Where air and oxygen is not available one can consider the plethora of blower and turbine units. These types of devices are also appropriate for the home where O2 may not be a primary concern. The interface can be the key for alert patients (ex. COPD). The interface must be soft and provide sufficient ability to seal. High Flow Nasal Therapy has gained the attention of caregivers and marketers of late because it provides a means to potentially avoid intubation while achieving the therapeutic requirements of care. Patient indications are not well established however based upon the criteria of care and basics of gas therapy one can consider patients with hypoxic and hypercapnic deficits. More information is available to our partners and is found within our partner portal!

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