Pulmonary physiology levitzky pdf

 
    Contents
  1. Pulmonary Physiology
  2. Pulmonary Physiology, Seventh Edition (Lange Physiology Series) [FU…
  3. Pulmonary Physiology
  4. Pulmonary Physiology, 9e

Pulmonary Physiology, 9e. Michael G. Levitzky. Go to Review Chapter 6: Diffusion of Gases and Interpretation of Pulmonary Function Tests · Chapter 7. Levitzky M.G. Ed. Michael G. zmagormisvile.gq Pulmonary Pulmonary Physiology, 9e Levitzky MG. Levitzky M.G. Ed. Favorite Table | Download .pdf) | Print. Request PDF on ResearchGate | On Jan 1, , Michael G. Levitzky and others published Pulmonary Physiology.

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Pulmonary Physiology Levitzky Pdf

Try before you download. Get chapter 1 for free. Master the structure and function of the human respiratory system with Pulmonary Physiology on Inkling! Zoom in on. Dr. Levitzky writes a great pulmonary physiology text. It is very clear and easy to understand for a medical student. I've had the opportunity to use both this book. Pulmonary Physiology, 7th Edition (Lange Physiology): Medicine 7th Edition (Lange Physiology) by Michael G. Levitzky Paperback $

For explanation of the groups and times, please see text. Discussion The physiopathological modifications that occur in the respiratory system in the head-down position have been extensively studied [ 2 , 3 , 4 , 6 ]. Coonan and Hope [ 3 ], when analysing the cardiorespiratory effects of change in body position, concluded that the head-down position reduces the FRC in the lung region near the diaphragm, which is compressed by the weight of the abdominal content, and increases the pulmonary blood volume in the dependent parts of the lungs under the effect of both gravity and the increase in cardiac output [ 7 ]. The result of these physiological changes can modify the ventilation-perfusion ratio and can interfere with oxygen uptake and carbon dioxide elimination [ 7 , 8 ]. The application of the drapes completely covering the face could interfere with respiratory gas exchange by creating a chamber of stagnating air, which might favour the rebreathing of the expired gases through a dead-space effect. This effect was only hypothesized, as we found no such confirmation in the literature. The purpose of this study was to investigate the influence of the two manoeuvres on the respiratory gas exchange in the cardiosurgical patient, and also to find a correlation between the respiratory gas exchange modifications and the preoperative function of the left ventricle. This correlation is supported by the fact that moving the patient from the head-down position while leaving the drapes in place did not significantly change PaO2 or PaCO2 in patients in these groups.

Considering the trend of arterial oxygenation, we can also deduce that the main factor responsible for the increase in PaO2 and SaO2 in all groups supplied with oxygen is the presence of the drapes completely covering the face. In these patients, the only contributing factor to the difference between time4 and the basal time is the covering of the face by drapes; body position and inspiratory oxygen concentration were constant.

This effect leads us to hypothesize that the drapes applied over the face may have facilitated the increase in oxygen concentration in the inspired gases by slowing down its diffusion into the room air. If this mechanism was responsible for the increase in arterial oxygenation, we could also expect an increase in PaCO2 as a consequence of carbon dioxide increase in the air below the drapes, but this event did not happen.

Pulmonary Physiology

It is possible that carbon dioxide did not increase in the inspired gases because of its higher diffusion compared to oxygen through the drapes, as it occurs at the alveolar-capillary membrane [ 13 ], but we are unable to conclude this.

Furthermore, coronary patients not in the head-down position and breathing room air showed improved arterial oxygenation with the drapes applied over the face. However, the increase in PaO2 and SaO2 was smaller than that observed in patients supplied with oxygen, although the levels of arterial oxygen tension and saturation were still satisfactory.

Cardio-respiratory effects of change of body position.

Pulmonary Physiology, Seventh Edition (Lange Physiology Series) [FU…

Can Anesth Soc J. Weilitz PB.

Diagnosis and treatment of pulmonary disorders. Oxygen saturation during preinduction placement of monotoring catheters in the cardiac surgical patient. Start on. Show related SlideShares at end.

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AMA Citation Appendix. Levitzky MG.

Pulmonary Physiology, 9e

Levitzky M. Michael G. Accessed April 14, MLA Citation. New York, NY: McGraw-Hill, , http: Download citation file:

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