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  • respiratory
  • Excretion of carbon dioxide is also impaired, but a rise in the arterial partial pressure of carbon dioxide (paCO 2 ) is very uncommon because this leads to respiratory stimulation and the resultant increase in alveolar ventilation returns paCO 2 to within the normal range. (wikipedia.org)
  • Moreover, recent awareness that avoidance of translaryngeal intubation preserves upper airway function (e.g., speech, swallowing), enhances patient comfort, decreases the incidence of nosocomial respiratory infections, and appears to improve morbidity and mortality in some individuals (Table 35-1) has led to greater emphasis on noninvasive ventilation. (springer.com)
  • Nasal ventilation to facilitate weaning in patients with chronic respiratory insufficiency. (springer.com)
  • indoor air qua
  • Because ventilation reduces any pollutants that might have accumulated in the indoor air, this is helpful in improving indoor air quality (IAQ). (ca.gov)
  • lung
  • Gravity and the weight of the lung act on ventilation by increasing pleural pressure at the base (making it less negative) and thus reducing the alveolar volume. (wikipedia.org)
  • The direct visual assessment of the lung parenchyma and imaging of lung ventilation using proton MRI is considerably more difficult than MRI of most other organs due to the very low signal intensity of the lung parenchyma. (springer.com)
  • Despite more reliable methods to ensure lung isolation, hypoxia during one-lung ventilation (OLV) can still be a challenge for the anesthesiologist. (springer.com)
  • Prior to resuming ventilation to the dependent lung, a manual recruitment maneuver may be performed with a gentle sustained pressure of 30 cm H 2 O for 10 s, as the poorly ventilated left upper lobe has likely developed some atelectasis during this time. (springer.com)
  • system
  • Heating and/or cooling systems in homes typically recirculate the same air after treating (heating or cooling) and are thus not part of an actual ventilation system because they do not bring in outdoor air. (ca.gov)
  • A closer look at insect breathing systems makes it easier to appreciate the functions of the more familiar human ventilation system. (nuffieldfoundation.org)
  • Make a simple model of the ventilation system. (nuffieldfoundation.org)
  • However, increased production from larger longwall panels is challenging the limits of modern and accepted ventilation system designs to maintain safe working conditions. (cdc.gov)
  • Also, severe changes in atmospheric pressure may cause increased interaction with sealed areas of the mine that can overwhelm the normal ventilation system. (cdc.gov)
  • In addition, ventilation models were used to investigate the effects of larger panels and increased production rates on bleeder ventilation system designs to control methane accumulations on the longwall face and at the tailgate corner. (cdc.gov)
  • However, use of this design can greatly increase the complexity of the ventilation system. (cdc.gov)
  • Research will continue to quantify the effect of ventilation system design on the control of methane, particularly at the longwall tailgate corner. (cdc.gov)
  • Work will also evaluate support methods to maintain the integrity of the tailgate entry closest to the gob and to assess the robustness of the ventilation system to handle fluctuations in gob gas emissions during periods of low barometric pressure. (cdc.gov)
  • A typical supply ventilation system has a fan and duct system that introduces fresh air into usually one -- but preferably several -- rooms that residents occupy most (e.g., bedrooms, living room). (energy.gov)
  • Any of you HVAC guys/gals design a Displacement Ventilation (DV) system in the Northeast USA? (physicsforums.com)
  • It could be the ventilation system. (homeenergy.org)
  • It gives guidance on ventilation requirements for kitchens, including information about adequate ventilation, the requirements of the Gas Safety (Installation and Use) Regulations 1998, features of a good ventilation system, and the duties of the caterer, the building manager, designers and equipment installers when installing new equipment. (hse.gov.uk)
  • airway
  • Non-invasive ventilation ( NIV ) is the use of airway support administered through a face (nasal) mask instead of an endotracheal tube. (wikipedia.org)
  • ducts
  • Supply ventilation systems use a fan to pressurize your home, forcing outside air into the building while air leaks out of the building through holes in the shell, bath, and range fan ducts, and intentional vents (if any exist). (energy.gov)
  • control
  • Ventilation is an important control strategy for maintaining good IAQ and improving poor IAQ. (ca.gov)
  • In addition, it is indicated as a measure to control ventilation in critically ill patients and as prophylaxis for impending collapse of other physiologic functions. (medscape.com)
  • breathe
  • The purpose of ventilation management is to "breathe for them" until they are sufficiently recovered to initiate respiration. (encyclopedia.com)
  • High frequency ventilation (HFV) provides breathing support for infants and children who are too ill or immature to breathe on their own. (childrens.com)
  • face
  • Noninvasive positive pres- sure ventilation via face mask. (springer.com)
  • The research also showed that face advance rates should be limited for specific face ventilation airflow quantities and degasification efficiencies, depending on methane emissions into the active longwall area. (cdc.gov)