Major Changes in the 2005 AHA Guidelines for CPR and ECC September 5, 2010
Posted by admin in : Quick Reference , comments closedThis editorial summarizes several key changes in resuscitation
skills and sequences recommended in the 2005 AHA
Guidelines for CPR and ECC. Simply put: rescuers should
push hard, push fast, allow full chest recoil, minimize
interruptions in compressions, and defibrillate promptly when appropriate.
BCLS PDF Guidlines
Advanced Mechanical Ventilation (powerpoint) April 19, 2010
Posted by admin in : Multimedia Library, Strategies, Ventilation , comments closed
:
- Mechanical ventilation expands the lungs and chest wall by pressurizing the airway during inflation. The stretched lungs and chest wall develop recoil tension that drives expiration.
- Positive pressure developed in the pleural space may have adverse effects on venous return, cardiac output and dead space creation.
- Stretching the lung refreshes the alveolar gas, but excessive stretch subjects the tissue to tensile stresses which may exceed the structural tolerance limits of this delicate membrane.
- Disrupted alveolar membranes allow gas to seep into the interstitial compartment, where it collects, and migrates toward regions with lower tissue pressures.
- Interstitial, mediastinal, and subcutaneous emphysema are frequently the consequences. Less commonly, pneumoperitoneum, pneumothorax, and tension cysts may form.
- Rarely, a communication between the high pressure gas pocket and the pulmonary veins generates systemic gas emboli.
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