نتایج جستجو برای: exhalation rate

تعداد نتایج: 961135  

Journal: :The European respiratory journal 2002
W Zetterquist H Marteus M Johannesson S L Nordval E Ihre J O N Lundberg K Alving

Increased levels of exhaled carbon monoxide (fractional concentration of CO in expired gas (FE,CO)), measured with an electrochemical sensor, have been reported in patients with inflammatory airway disorders, such as asthma, rhinitis and cystic fibrosis. This study aimed to evaluate these findings by using a fast-response nondisperse infrared (NDIR) analyser, and to compare these measurements w...

Journal: :Indoor air 2010
Jitendra K Gupta Chao-Hsin Lin Qingyan Chen

UNLABELLED The exhaled air of infected humans is one of the prime sources of contagious viruses. The exhaled air comes from respiratory events such as the coughing, sneezing, breathing and talking. Accurate information on the thermo-fluid characteristics of the exhaled airflow can be important for prediction of infectious disease transmission. The present study developed a source model to provi...

Journal: :American journal of respiratory and critical care medicine 2002
Hye-Won Shin Christine M Rose-Gottron Ramindrjit S Sufi Federico Perez Dan M Cooper Archie F Wilson Steven C George

Exhaled nitric oxide (NO) remains a promising noninvasive index for monitoring inflammatory lung diseases; however, the plateau concentration (C(NO,plat)) is nonspecific and requires a constant exhalation flow rate. We utilized a new technique that employs a variable flow rate to estimate key flow-independent parameters characteristic of NO exchange in a group (n = 9) of 10 to 14 yr-old healthy...

Journal: :Future Internet 2022

Breathing is essential for human life. Issues related to respiration can be an indicator of problems the cardiorespiratory system; thus, accurate breathing monitoring fundamental establishing patient’s condition. This paper presents a ready-to-use and discreet chest band respiratory parameters based on piezoresistive transduction mechanism. In detail, it relies strain sensor realized with press...

Journal: :Journal of applied physiology 2013
Michael P Hlastala Frank L Powell Joseph C Anderson

Highly blood soluble gases exchange with the bronchial circulation in the airways. On inhalation, air absorbs highly soluble gases from the airway mucosa and equilibrates with the blood before reaching the alveoli. Highly soluble gas partial pressure is identical throughout all alveoli. At the end of exhalation the partial pressure of a highly soluble gas decreases from the alveolar level in th...

Journal: :Age and ageing 1996
D King M L Smith T J Chapman H R Stockdale M Lye

Malnutrition resulting from chronic congestive heart failure (cardiac cachexia, CC) is not uncommon and contributes to mortality and morbidity especially of elderly people. The aetiology of cardiac cachexia is probably multifactorial. We have assessed whether malabsorption of fat is associated with CC and if so whether it is due to small-bowel bacterial overgrowth. Three groups of subjects were...

2012
Lawrence Leung Troy Neufeld Scott Marin

BACKGROUND Tobacco smoking is still a worldwide health risk. Current pharmacotherapies have at best, a success rate of no more than 50%. Auricular (ear) acupressure has been purported to be beneficial in achieving smoking cessation in some studies, while in others has been deemed insignificant. We hereby describe the protocol for a three-arm randomised controlled trial to examine the possible b...

1999
E. L. Brainerd

In the traditional view of vertebrate lung ventilation mechanisms, air-breathing fishes and amphibians breathe with a buccal pump, and amniotes breathe with an aspiration pump. According to this view, no extant animal exhibits a mechanism that is intermediate between buccal pumping and aspiration breathing; all lung ventilation is produced either by expansion and compression of the mouth cavity...

Journal: :Anesthesia and analgesia 2006
Samsun Lampotang D E Lizdas N Gravenstein S Robicsek

Self-inflating manual resuscitators (SIMRs) can mislead caregivers because the bag, unlike a Mapleson-type device, reinflates even without patient exhalation. We added a whistle as an audible indicator to the exhalation port of a SIMR. In randomized order, each participant provided two sets of breaths via mask ventilation with a SIMR, one with and one without audible feedback, to a Human Patien...

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