World Library  
Flag as Inappropriate
Email this Article

Tachypnea

Article Id: WHEBN0000223211
Reproduction Date:

Title: Tachypnea  
Author: World Heritage Encyclopedia
Language: English
Subject: Methamphetamine, Birtoxin, Respiratory rate, Hyperventilation, Malignant hyperthermia
Collection: Abnormal Respiration, Symptoms and Signs: Respiratory System
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Tachypnea

Tachypnea
Classification and external resources
ICD-10 R06.0
ICD-9-CM 786.06

Tachypnea (or "tachypnoea") (Greek: "rapid breathing") is abnormally rapid breathing.

In adult humans at rest, any rate between 12 and 20 breaths per minute is normal and tachypnea is indicated by a ventilatory rate greater than 20 breaths per minute.[1] Children have significantly higher resting ventilatory rates, which decline rapidly during the first three years of life and then steadily until around 18 years. Tachypnea can be an early medical sign of pneumonia in children.

Contents

  • Distinction from other breathing terms 1
  • Causes 2
  • See also 3
  • References 4

Distinction from other breathing terms

Different sources produce different classifications for breathing terms.

Some describe tachypnea as any rapid breathing. Hyperventilation is then described as increased ventilation of the alveoli (which can occur through increased rate or depth of breathing, or both) where there is a smaller rise in metabolic carbon dioxide relative to this increase in ventilation. Hyperpnea, on the other hand, is defined as breathing more rapid and deep than breathing at rest.[2]

Others give another classification: tachypnea is as any rapid breathing, hyperventilation is increased rate of breathing at rest, hyperpnea is an increase in breathing that is appropriately proportional to an increase in metabolic rate.[3]

A third paradigm is: tachypnea is abnormally rapid respiration (though some may argue this is inaccurate as breathing differs from respiration), hyperventilation is increased rate or depth of respiration to abnormal levels causing decreased levels of blood carbon dioxide and hyperpnea is any increase in breathing rate or depth that is not normal.[4]

Causes

Tachypnea may have physiological or pathological causes. Both of these categories would include large lists of individual causes. For example, physiological causes of tachypnea include exercise and labor during pregnancy. Amongst pathophysiological causes, tachypnea can be a symptom of carbon monoxide poisoning in which oxygen delivery to the tissues and organs is blocked causing hypoxia and direct cellular injury.

See also

References

  1. ^ "tachypnea" at Dorland's Medical Dictionary
  2. ^ Stedman's medical dictionary 28th ed. (2006)
  3. ^ Martin, Elizabeth A (ed.) (2003). Oxford concise medical dictionary (6th ed. w. corrections & new cover) Oxford University Press. pp. 333–4. ISBN 0-19-860753-9
  4. ^ Dorland's Medical Dictionary for Health Consumers. © 2007 by Saunders, an imprint of Elsevier, Inc.
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.