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How can water pollution be prevented? |
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How can the sewage disposal system be managed? |
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Is recycling beneficial? |
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Are tree planting programs essential? |
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How can pollution due to automobile emissions be curbed? |
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What exactly does echocardiography mean? |
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Why is coronary angiography performed? |
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Is electrocardiogram an effective test for heart diseases? |
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What activities should a person follow after a heart attack? |
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What does myocardial infarction mean? |
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How can water pollution be prevented? |
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For preventing water pollution due to oils slicks, they should be set on fire by skimming off from the surface with a suction device. Oil-eating microbes can also be sprayed over the area, which degrade the oil. The other effective method is sinking, in which powdered or fine granular solids of high density are sprayed over the oil patch to mix with the oil, adhere to it and sink it.
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How can the sewage disposal system be managed? |
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Effluent treatment systems have to be incorporated in industry. Industries, where it is already in existence, need to operate their plants regularly without looking for savings. In our country distilleries can set up bio-gas plants which are fed by their effluents resulting in reduction in fuel costs and decrease in effluent’s strength.
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Is recycling beneficial? |
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Yes. Recycling is the best and the cheapest method of utilizing wastes as raw materials in the manufacturing of new products.
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Are tree planting programs essential? |
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Yes. More and more trees need to be planted in and around an industry and also along the roadsides and in the houses located in the vicinity of the industry. Trees are capable of absorbing more of carbon dioxide and help reduce the atmospheric carbon dioxide levels, thus maintaining equilibrium in the air composition.
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How can pollution due to automobile emissions be curbed? |
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Many techniques for the control of automobile emissions have been developed which include tune-ups, catalytic reactors and engine modification.
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What exactly does echocardiography mean? |
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Echocardiography i.e. ultra sound cardiograph is a safe non-invasive procedure. Reflected waves are converted into electrical impulses that can be seen on an oscilloscope or can be photographed. The test covers the examination of various parts of the heart, that can be stored and repeated whenever required.
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Why is coronary angiography performed? |
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Coronary angiography is done to visualise and study coronary arteries, to locate any blockage and the left ventricle of the heart is studied for aneurysm caused by infarction, which is beneficial to carry out bypass surgery. The information obtained by angiography is vital for the success of the bypass surgery or angioplasty which cannot be obtained by any other source.
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Is electrocardiogram an effective test for heart diseases? |
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Electrocardiogram is the test that records the action of the heart in the electric form. During the test, strips of heat sensitive papers are applied to the patient’s limbs and chest by connecting the wires to the instruments for recording by electrocardiograph.
It is considered an effective diagnostic test for heart diseases. However, there are some limitations with the test. For instance, in case of a very recent heart attack, the recordings may be normal or near normalcy or either way in case of attacks after a few hours or days, the examination may be abnormal, even if patient is recovering.
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What activities should a person follow after a heart attack? |
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Exercises programmed by the occupational therapist along with rest helps to regain the normal activity. One needs to judge by themselves for the reactions of the body at different levels of physical activity. Warning signs gives alarm when one has worked beyond one’s strength.
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What does myocardial infarction mean? |
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Myocardial infarction is the medical term for heart attack and is the severe heart pain caused due to the collapse of some part of the heart muscles. Some times it leads to spot death. The underlying cause of myocardial infarction is the obstruction in the coronary artery, the artery that supplies blood to the heart muscle. This obstruction is due to the narrowing of the artery caused due to the deposition of fats on the walls of the artery (atheroma), leading to clotting of blood (thrombosis) thus blocking supply of blood to the heart muscles.
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