HNN227 Lecture Notes - Lecture 3: Ocular Ischemic Syndrome, Coronary Artery Disease, Coronary Circulation

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28 Mar 2020
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The nurse need to know what and how ischemia is caused. Ischemia is a deficiency in blood supply to a part of the body resulting in decreased oxygen supply. If it is ongoing and severe the cells will die without access to a normal blood flow which is also called infarction or necrosis. There are many reasons for decrease in oxygen supply such as vasoconstriction, vasospasm, anaemia and haemorrhage. Question 2: where does ischemia go? i. ) ii. ) iii. ) iv. ) v. ) vi. ) Symptoms of stroke include trouble walking, speaking and understanding, as well as paralysis or numbness of the face, arm or leg. Eyes causes severe vision deficit due to decrease blood supply flow from number of condition. Ocular ischemic syndrome (ois) is a rare, but vision-threatening condition associated with severe carotid artery occlusive disease (stenosis or occlusion) leading to ocular hypoperfusion. Principal symptoms include visual loss, transient visual loss, and ischemic ocular pain. Heart causes angina due to cardiac arrest.

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