MI: Myocardial Infarction Term Paper

Pages: 3 (870 words)  ·  Bibliography Sources: 0  ·  File: .docx  ·  Level: College Senior  ·  Topic: Anatomy


Although the heart will retain a scar, many people go on to lead quite normal lives after recuperation. Try to take it easy, and rest assured that Paul will be taken care of to the best of our ability."

Question 3: When you analyzed his ECG, you referred to several different leads, such as lead I. What are leads?

Leads are the Electrodes that are typically attached to the chest, neck, arms, and legs to record the pathway of electrical impulses through the heart muscle. The results of this can tell us how the heart is functioning, and can also pinpoint specific problems.

Question 4: Why is it possible to record an ECG on the body surface without direct access to the heart?

Within the body, there is a natural electrical system. This causes the heart to pump at regular intervals to the various parts of the body. Because this is an electrical process, we can get the electrical "map" or picture of what is going on by measuring the way that electrical impulses are conducted through various parts of the body including the chest, arms and legs. Much as one can see if a car battery is working properly by measuring the voltage through the wires, the body can conduct electricity in a predictable way. The ECG allows us to get this information from the body surface and then allow physicians to interpret this information for possible abnormalities (WebMD, 2005).

Question 5: What effect would the injection of isotonic saline have on Paul's extracellular fluid volume? On his intracellular fluid volume? On his total body osmolarity?

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Venous administration of isotonic saline would expand Paul's extracellular fluid volume. However, because it does not change extracellular sodium concentration, it does not change intracellular volume (Kohan, 2005). Thus, Paul's total body osmorality is unchanged.

When Paul arrived at the University of Colorado Health Sciences Center emergency room, one of the first tasks was to determine he had actually had a heart attack. Paul's vital signs (pulse and breathing rates, blood pressure, temperature) were taken. A resident physician drew blood for enzyme assays to determine the level of cardiac enzymes in Paul's blood.

TOPIC: Term Paper on MI Case Study: Myocardial Infarction Assignment

When heart muscle cells die, they release various enzymes that serve as markers of a heart attack. I addition, a second tube of blood was sent for an assay of its troponin I level.

Question 6: Some of the enzymes that are used as markers for heart attacks are [END OF PREVIEW] . . . READ MORE

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