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Respiratory physiology compliance

The NIOSH-OSHA Standards Completion Program — Respirator Decision Logic provides guidance of the limitations of the equipment and OSHA compliance. In selecting the proper respiratory protection device, the physiology of the wearer, the toxicity of the hazards encountered by leakage or misuse and the hazard of sampling all must be considered carefully. [Pg.109]

Careful patient selection prevents unsafe levels of alveolar hypoventilation with subsequent hypoxemia and hypercapnea, especially if the tidal volume leakage is >20%. Any compensatory increase in respiratory rate and shortened expiratory time, attributable to the air leakage, may aggravate dynamic hyperinflation, especially among patients with airflow obstruction (15). Ventilator-supported speech has been reported in patients with neuromuscular diseases (NMD) and intact bulbar function (16-19). The physiologic characteristics that enable this population to tolerate ventilator-supported speech include little or no decrease in chest wall or lung compliance and the absence of airflow obstmction. Therefore, patients with NMD may be ventilated with a deflated or cuffless tracheostomy tube accepting the modest compromise in alveolar ventilation (16,20-22). Patient populations, such as those with chronic obstructive pulmonary disease may be able to tolerate cuff deflation for short periods provided there is adequate supervision. [Pg.326]

In conclusion, NPPV is increasingly used in children and infants. This expanding use contrasts with the limited proven benefits. Pediatricians, physiologists, nurses, physiotherapists, and technicians should combine their efforts to determine more accurately the physiological effects of NPPV, especially on the respiratory muscles, respiratory compliance and growth, central drive and psychoneurological development, so that it may be introduced at a time least likely to be harmfiil and most likely to be of benefit in improving respiratory function and health-related quality of life. [Pg.476]


See other pages where Respiratory physiology compliance is mentioned: [Pg.235]    [Pg.490]    [Pg.551]    [Pg.310]    [Pg.475]    [Pg.374]    [Pg.664]   
See also in sourсe #XX -- [ Pg.142 ]




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