Question

difference between positive pressure breathing and negative pressure breathing

Answer 1

Answer:

This site is intended for healthcare professionals

Medscape Logo

Drugs & Diseases > Critical Care > Respiratory Failure Q&A

What are the differences between positive-pressure and negative-pressure ventilators for the treatment of respiratory failure?

Updated: Apr 07, 2020

Author: Ata Murat Kaynar, MD; Chief Editor: Michael R Pinsky, MD, CM, Dr(HC), FCCP, FAPS, MCCM more...

References

For air to enter the lungs, a pressure gradient must exist between the airway and the alveoli. This can be accomplished either by raising pressure at the airway (positive-pressure ventilation) or by lowering pressure at the level of the alveolus (negative-pressure ventilation).

The iron lung or tank ventilator is the most common type of negative-pressure ventilator used in the past. These ventilators work by creating subatmospheric pressure around the chest, thereby lowering pleural and alveolar pressure and facilitating flow of air into the patient’s lungs. These ventilators are bulky and poorly tolerated and are not suitable for use in modern critical care units. Positive-pressure ventilation can be achieved via an endotracheal or tracheostomy tube or noninvasively through a nasal mask or face mask.

Read More

Related Questions:

What are the differences between controlled and patient-initiated ventilators for the treatment of respiratory failure?

Which variables are set for positive-pressure ventilation in respiratory failure?

View All Related Questions >

To continue reading this article ...

or

Medscape Logo

FIND US ON

ABOUT

About Medscape

Privacy Policy

Editorial Policy

Cookies

Terms of Use

Advertising Policy

Help Center

MEMBERSHIP

Become a Member

Email Newsletters

Manage My Account

About You

Professional Information

Newsletters & Alerts

APPS

Medscape

CME & Education

WEBMD NETWORK

Medscape Live Events

WebMD

MedicineNet

eMedicineHealth

RxList

WebMD Corporate

EDITIONS

English

Deutsch

Español

Français

Português

All material on this website is protected by copyright, Copyright © 1994-2020 by WebMD LLC. This website also contains material copyrighted by 3rd parties.

cookie

Explanation:

hope you like it

please mark me as Brainlist

please follow me......

Thank you.........

thank you....