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Differentiate myocardial ischemia from myocardial infarction?
Answer:
Ischaemia is the lack of blood supply to a tissue which start anaerobic respiratory mechanisms. Infarction is cell death through apoptosis resulting from prolonged or severe ischaemia.
Clinicaly myocardial infarction will be more painful and is unrelieved by rest.
On ECG infarction will reult in ST segment elevation where ischaemia will result in ST segment depresion (unless it is a posterior MI!). In MI there will also be raised biochemical markers hours later such as creatine kinase and troponin.
Clinicaly myocardial infarction will be more painful and is unrelieved by rest.
On ECG infarction will reult in ST segment elevation where ischaemia will result in ST segment depresion (unless it is a posterior MI!). In MI there will also be raised biochemical markers hours later such as creatine kinase and troponin.
First answer by ID2331898905.
Last edit by ID2331898905.
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