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Carpenter CPR - Frederick CPR, BLS, ACLS, First Aid training |
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![]() Oxygen toxicity results from breathing in high concentrations of oxygen. Severe cases of oxygen toxicity can result in death. Oxygen destabilizes cell membranes and causes free radicals that can do cellular damage. It can affect multiple body systems- Notably, oxygen toxicity can affect the central nervous system, resulting in seizures, the respiratory system, causing irritation, coughing, shortness of breath, and acute respiratory distress syndrome. Oxygen toxicity affects the eyes, causing bleeding, cataract formation, and fibrosis. Muscle twitching is common with the condition. Of course sick patients may require oxygen, but the goal should be to decrease the amount of supplemental oxygen as quickly as possible and titrate the oxygen level to an spO2 of greater than/ equal to 96%. Ventilation should ideally be tailored to an end tidal CO2 of 35-40. Titration of ventilation status to waste products is a good reminder of the need to decrease the fraction of inspired oxygen, and that hyper-oxygenation can be a classic example of "too much of a good thing." Optimization of oxygenation status is an absolute priority after a code, and decreasing the fraction of inspired O2 is a part of that optimization process. Additionally, oxygen is a powerful vasoconstrictor. In a recent study of measured coronary blood flow, patients had a decrease of approximately 15% in their coronary blood flow after breathing 100% oxygen for just 5 minutes. The vascular resistance in the vessels increased 20%. It is important to keep the benefits and risks of oxygen in mind when working with post-code and acute coronary patients. Reference: Moradkhan, R., & Sinoway, L. I. (2010, September 21). Revisiting the role of oxygen therapy in cardiac patients. Journal of the American College of Cardiology, 56(13), 1013-1016. http://dx.doi.org/10.1016/j.jacc.2010.04.052 Author: Scott Carpenter Image Credit: User: Aboalbiss / Wikimedia Commons / CC-BY-SA-3.0 / GFDL
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As Registered Nurses with extensive critical care experience, we suggest learning your CPR from someone who has done it. We are striving to bring you the utmost in convenience and quality while placing skills in your hands. Serving Frederick, MD and the entire Mid Atlantic for CPR, First Aid, BLS and ACLS training. Archives
January 2018
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Placing skills in
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CPR and ACLS instruction for Frederick, MD and beyond!
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