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Use of PEEP in Ventilation - Research Proposal Example

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This paper "Use of PEEP in Ventilation" discusses the impact of the use of PEEP in ventilated patients and to identify the strategies to improve the care settings. Twenty journals on the use of PEEP in patients in need of external mechanical ventilation intervention were examined…
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Use of PEEP in Ventilation
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Download file to see previous pages A ventilator is a mechanism that provides sufficient oxygen to a patient from externally. Normally, during passive exhalation, the alveolar pressure is the same as the atmospheric pressure at the end of exhalation. Positive end-expiratory pressure (PEEP) is used mainly to recruit or stabilize lung units and improve oxygenation in patients with hypoxemic respiratory failure thereby the pressure of the alveoli at the end of exhalation is maintained at an appropriate level. Measurement of respiratory system mechanics in patients who are subjected to external mechanical ventilation suffering from low tidal volumes is important to assess the status of the ailment and to choose appropriate ventilator settings. (Pilar Saura & Lluis Blanch, 2002). Researches so far carried out has thrown light on the descriptive side of the application of PEEP. However, no controlled studies have been done to demonstrate the best method of choosing the level of PEEP. In fact, most physicians hesitate to use PEEP level more than 10cm H2O. (Jesus Villar, 2003,)

The primary function of the lungs involves the transfer of oxygen from the inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air. Whenever a patient suffers from the malfunctioning of lungs due to improper gas exchange he is supposed to be within the enclave of respiratory failure. ARDS, Acute Respiratory Distress Syndrome is often the fertile soil for respiratory failure to get nurtured. In ARDS there is a sudden respiratory failure due to the rapid accumulation of fluid in the lungs following an abrupt increase in the permeability of the normal barrier between the capillaries and the alveoli air sacs in the lungs. This damages the capillaries and alveoli air sacs. Leakage of fluid from the damaged capillaries to air sacs causing some sacs to collapse and some sacs filled with the fluid. This makes the lung stiff. Gas exchange is quite improbable at this point and the amount of oxygen in the blood drops considerably.  ...Download file to see next pages Read More
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