Pathophysiology of a Myocardial Infarction Essay

2482 Words Apr 29th, 2010 10 Pages
For the purpose of this assignment the author will discuss the pathophysiology of a myocardial infarction and will give an in-depth discussion of one central aspect of care and in this assignment the author has chosen the management of anxiety. Due to word restrictions a brief mention will be given to the other aspects of care. Ischaemia is a term which is used to describe the deficiency in blood supply to any part of the body. In ischaemic heart disease there is a deficiency in the blood supply to the heart muscle which can be caused by an obstruction to, or even a narrowing of the coronary arteries. This in turn reduces the supply of nutrients and oxygen to the heart muscle. Without an optimum oxygen supply the heart muscle is unable to …show more content…
The patient may be comfortable to restless and in severe distress with an increased respiratory rate. Their skin may be pale and cool to touch and this may indicate vasoconstriction. Some patients may also experience a low grade fever and blood pressure may be either elevated or decreased and their pulse irregular.(Tsai 2005)
The first line in the treatment on site of a myocardial infarction is usually oxygen, aspirin, glycerol trinitrate and an analgesia such as morphine, which is classically the favoured pain relief drug of choice due to its ability to dilate blood vessels which will aid in blood flow to the heart, however it is important to note that morphine can also cause hypotension. The functions of myocardial contractility are quickly lost due to the depletion of oxygen supply however should blood supply be restored within the first 20 minutes it may be possible to prevent irreversible damage. Inflammation can begin to subside after a period of 48 hours

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