This essay has been submitted by a student. This is not an example of the work written by professional essay writers.

High-flow Nasal Cannula (hfnc) Oxygen Therapy

downloadDownload printPrint

Remember! This is just a sample.

You can get your custom paper by one of our expert writers.

Get custom essay

121 writers online

Download PDF

High-flow nasal cannula (HFNC) oxygen therapy comprises an air/oxygen blender, an active humidifier, a single heated circuit, and a nasal cannula. It delivers adequately heated and humidified medical gas at up to 60 L/min of flow and is considered to have a number of physiological effects which include: reduction of anatomical dead space, PEEP effect, constant fraction of inspired oxygen, and humidification. HFNC can also be used in hypercapnic/ hypoxemic respiratory failure, post extubation, pre intubationm acute heart failure, sleep apnea.

HFNC has been gaining attention as an innovative respiratory support for critically ill adult patients. High flow nasal cannula is also gaining momentum because it extremely simple to setup and equipment is readily available. HFNC equipment need is: flow meter, air-oxygen blender, heated inspiratory circuit, active humidifier and nasal cannula because of the proper humidification and high flow HFNC washes out washes out carbon dioxide in anatomical dead space. Since tidal volume does not change while a patient is using HFNC and respiratory rate is reduced, minute ventilation is lower. It can also be assumed that alveolar ventilation, along with PaCO2, is constant. This evidence points to there being less dead space. HFNC is an open system, high flow from the nasal cannula works against some of the resistance of expiratory flow and increases airway pressure thus causing increase PEEP.

Hypercapnic respiratory failure is a frequently problem seen in patients in the emergency room or ICU . Patients with this condition present a significant challenge to respiratory and critical care services, because mechanical ventilation wants to be avoided for these type of patients. Usually the first line of defense for these patient is non invasive ventilation (NIV). Poor mask tolerance is the main problem with NIV. Some studies have shown successful use of HFNC oxygen therapy to manage the hypercapnic respiratory failure of a patient unable to tolerate conventional NIV.

HFNC can also be used for pre intubation procedure. Before tracheal intubation we must enhance oxygenation, this can be done by using a non rebreathing mask. It is when the mask has to be removed during laryngoscopy procedure, the patient is deprived of oxygen. Because nasal cannulas do not interfere with the laryngoscopy procedure HFNC could be used to deliver oxygen during the apneic period of intubation. Obstructive sleep apnea upper airway collapse that can cause hypoxia, neurological dysfunction, and can increase cardiovascular morbidity The traditional treatment of sleep apnea is CPAP.

While CPAP is the most effective treatment patient compliance is suboptimal and a large number of patients are left untreated. HFNC delivery for OSA alleviated upper airway obstruction in both children and adults. OSA is also common among acute stroke patients and is associated with a decline in neurological function. Although CPAP is effective in treating sleep disordered breathing, with stroke patients, it is often abandoned due patient discomfort. It has been reported that HFNC was well tolerated and decreased the apnea and the oxygen desaturation, and increase of better quality of sleep was reported.

Remember: This is just a sample from a fellow student.

Your time is important. Let us write you an essay from scratch

experts 450+ experts on 30 subjects ready to help you just now

delivery Starting from 3 hours delivery

Find Free Essays

We provide you with original essay samples, perfect formatting and styling

Cite this Essay

To export a reference to this article please select a referencing style below:

High-flow nasal cannula (HFNC) oxygen therapy. (2018, October 26). GradesFixer. Retrieved May 29, 2022, from
“High-flow nasal cannula (HFNC) oxygen therapy.” GradesFixer, 26 Oct. 2018,
High-flow nasal cannula (HFNC) oxygen therapy. [online]. Available at: <> [Accessed 29 May 2022].
High-flow nasal cannula (HFNC) oxygen therapy [Internet]. GradesFixer. 2018 Oct 26 [cited 2022 May 29]. Available from:
copy to clipboard

Sorry, copying is not allowed on our website. If you’d like this or any other sample, we’ll happily email it to you.

    By clicking “Send”, you agree to our Terms of service and Privacy statement. We will occasionally send you account related emails.


    Attention! This essay is not unique. You can get a 100% Plagiarism-FREE one in 30 sec

    Receive a 100% plagiarism-free essay on your email just for $4.99
    get unique paper
    *Public papers are open and may contain not unique content
    download public sample

    Sorry, we could not paraphrase this essay. Our professional writers can rewrite it and get you a unique paper.



    Please check your inbox.

    Want us to write one just for you? We can custom edit this essay into an original, 100% plagiarism free essay.

    thanks-icon Order now

    Hi there!

    Are you interested in getting a customized paper?

    Check it out!
    Don't use plagiarized sources. Get your custom essay. Get custom paper

    Haven't found the right essay?

    Get an expert to write you the one you need!


    Professional writers and researchers


    Sources and citation are provided


    3 hour delivery