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Labored respiration or labored breathing is an abnormal respiration characterized by evidence of increased effort to breathe, including the use of accessory muscles of respiration, stridor, grunting, or nasal flaring.〔(TheFreeDictionary > labored breathing ) Retrieved on Dec 12, 2009〕 ==Classification== Labored breathing is distinguished from shortness of breath or ''dyspnea'', which is the sensation of respiratory distress rather than a physical presentation. Still, many〔(TheFreeDictionary ), retrieved on Dec 12, 2009. Citing: *The American Heritage Dictionary of the English Language, Fourth Edition by Houghton Mifflin Company. Updated in 2009. *Ologies & -Isms. The Gale Group 2008 〕 simply define dyspnea as ''difficulty in breathing'' without further specification, which may confuse it with e.g. labored breathing or tachypnea (rapid breathing). Labored breathing has occasionally been included in the definition of dyspnea as well.〔(Definition of Dyspnea ) MedicineNet. Last Editorial Review: 11/1/1998]〕 However, in the standard definition, these related signs may be present at the same time, but don't necessarily have to be. For instance, in respiratory arrest by a primary failure in respiratory muscles the patient, if conscious, may experience dyspnea, yet without having any labored breathing or tachypnea. The other way around, labored breathing or tachypnea can voluntarily be performed even when there is no dyspnea. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「labored breathing」の詳細全文を読む スポンサード リンク
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