نتایج جستجو برای: peak inspiratory flow pif
تعداد نتایج: 613745 فیلتر نتایج به سال:
The determining factors of peak nasal inspiratory flow and perception of nasal airflow in asthmatics
BACKGROUND Evidence exists that during pressure support ventilation (PSV), the addition of an extrinsic (ie, ventilator-generated) breath-to-breath variability (BBV) of breathing pattern improves respiratory function. If BBV is beneficial per se, choosing the PS level that maximizes it could be considered a valid strategy for conventional PSV. In this study, we evaluated the effect of different...
in the management and evaluation of asthma, simple instruments for measurements of peak expiratory flow rate (pefr) are necessary. the aim of this study was to determine normal pefr of the healthy children in babol, iran. this study was randomly done on 1050 students (primary and secondary schools) in babol. mini-wright peak flow meter was used for measurement of pefr. the range of age, weight ...
The flow-volume loop is a test of ventilatory function in which a graphic recording of maximal flow rates is dispiayed at all lung volumes during a maximal effort forced expiratory and inspiratory vital capacity maneuver. The test is errsy to demonstrate, administer, and analyze. Pulmonary diseases produce characteristic flow-volume loop abnormalities. The visualization of abnormalities and cal...
BACKGROUND We investigated the role of mechanical ventilatory constraints in obese class III subjects during incremental exercise. METHODS We examined 14 control subjects (body mass index [BMI], 23.6 ± 3.2 kg/m(2)), 15 obese class II subjects (BMI, 37.2 ± 4.5 kg/m(2)), and 17 obese class III subjects (BMI, 53.4 ± 6.8 kg/m(2)). All subjects performed pulmonary function tests and maximal inspir...
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