maandag 2 september 2013

EFR training Gili Islands

A lot of people don't really understand the conditions of a shock. During the EFR training Gili Islands at IDC dive resort Oceans 5 dive Gili Air, the definition of shock will be well explained. Read this interesting article: Shock is a dangerous physical condition in which the flow of blood throughout the body is drastically reduced, causing weakness, confusion, or loss of consciousness. It can result from many kinds of serious injuries and illnesses. If shock is not treated quickly, a person can suffer permanent organ damage and die. What Is Shock? "I studied for days, but I failed the test. I'm in shock," says one teenager to another. In everyday speech, "shock" is common and sometimes even fun. People line up to get shocked by horror movies. They want to feel an emotional jolt from seeing something sudden, surprising, and scary. Their hearts may beat a little faster for a moment, but when the movie ends they're as healthy as before. This kind of emotional shock has nothing to do with medical shock. "Shock" in the medical sense also can be sudden, surprising, and scary. But it is a very specific physical condition that is extremely serious. Shock occurs when the amount of blood reaching the brain and other parts of the body is reduced drastically; in other words, when the blood pressure falls very low. Since the blood carries oxygen needed by every cell in the body, the drop in blood flow deprives the cells of oxygen. The brain, the biggest user of oxygen, is affected, making the person confused, dazed, or unconscious. As cells struggle to function without enough oxygen, many chemical processes in the body are disrupted. Organs, including the lungs, kidneys, liver, and heart, start to fail. Unless the blood flow is restored quickly, the damage may be fatal. * aortic aneurysm (ay-OR-tik AN-yoo-rizm) is a weak spot in the aorta, the body's largest blood vessel. The weak spot can rupture or break, causing massive internal bleeding. What Causes Shock? There are several underlying causes of shock. Often, a case of shock involves two or all three of these types of underlying problems. These include: • There is not enough fluid in the bloodstream. This kind of shock is called hypovolemic (hy-po-vo-LEEM-ik) shock. It can be caused by heavy bleeding from an injury, such as a gunshot wound or wounds suffered in a car crash. It also can be caused by severe bleeding from a medical condition, such as an aortic aneurysm * or bleeding stomach ulcers. It can also occur if a person loses large amounts of fluids other than blood. That can happen, for instance, if a person has severe vomiting and diarrhea or has been badly burned over a large part of the body. • The blood vessels dilate (expand) too much. If this happens, blood pressure (the pressure within the blood vessels) can become so low that not enough blood is pushed out to reach vital tissues. The most common example of this kind of shock is septic (SEP-tik) shock, which is caused by a severe bacterial infection. • The heart fails to pump the blood strongly enough. This is called cardiogenic (kar-dee-o-GEN-ik) shock. It can be caused by many heart problems including a heart attack, an abnormal heart rhythm, a blood clot in the heart, or a buildup of fluid around the heart that presses on the organ, or by severe damage to a heart valve. Read more: For more information about IDCs at the Gili Islands: or our facebook page:

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