Blood Cells Leukocytes (WBC’s) Leukocytes also known as white blood cells (WBCs) are cells which play a defensive roll in the body against injury and infection. They migrate towards tissues where they are needed and become functional performing various activities. WBCs can be divided into 2 groups: Polymorphonuclear granulocytes and mononuclear agranulocytes. Both types are spherical while suspended in blood plasma but when they invade tissues after leaving the blood vessels they become amoeboid
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speech (aphasia) Trouble seeing Trouble walking or dizziness; loss of balance or coordination (ataxia) Severe headache with no known cause 1. Ischemic stroke (~83%) - blood vessel supplying brain tissue is blocked by a blood clot. a. cerebral thrombus b. cerebral embolism 2. Hemorrhagic stroke (~17%) - A blood vessel breaks open‚ causing blood to leak into the brain. 3. Define the term collateral blood flow‚ and describe how this and other factors affect the development of stroke
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coagulation at these sites‚ thereby increasing the risk of thrombosis. Signs and symptoms develop when there is obstruction to venous outflow and inflammation of the vessel wall and perivascular tissue. Symptoms of pulmonary embolism arise when segments of thrombus detach and embolize to the pulmonary circulation. Arterial thrombi form under high shear conditions and are composed primarily of platelet aggregates held together by fibrin strands. Obstruction of anterograde arterial flow leads to ischemia‚ which
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system ← HEMATOLOGY TEST ← By: ← Bacolod Ornopia ← Gequillana Steinbach ← 1. Blood typing/ RH typing ← Blood is often grouped according to the ABO blood typing system. This method breaks blood types down into four categories: ← Type A ← Type B ← Type AB ← Type O ← Blood typing is also done to tell whether or not you have a substance called Rh factor on the surface of your red blood cells. If you have this substance
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Maternity Health nursing Kholud Rajab Yousef is 29 years pregnant woman in her 32 gestational weeks‚ G: 8. P:4 admitted to antenatal wards at 6/12/2011 with complain of dizziness ‚ shortness of breath‚ palpitation and fatigue‚ she also have history of varicosities since 5 years ago‚ which cause acute pain in her legs. The pt. is on regular diet‚ not smoker‚ educational level is high school‚ she is house wife‚ her husband educational level is secondary school‚ he work as taxi driver ‚ he is
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2. Block effect of adrenaline/noradrenaline; 3. Prevents rise in heart rate/lowers heart rate; 4. Reduces blood pressure; 5. Reduces likelihood of atheroma/MI/stroke/aneurysm; 2 max Reject regulates heart rate Reject artery bursting. Accept thrombus/blood clot 2(c) 1. (Angioplasty) opens blocked (coronary) artery; 2. Increases blood flow to heart muscle / in coronary artery; 3. Increases supply of oxygen / glucose to heart; 2 max Do not credit incorrect artery Ignore reduces pressure
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medical ward. She was initially admitted with a fall at home and was alert on admission‚ however‚ a week later she had developed aphasia‚ with no limb weakness‚ visual field deficit or facial droop. Thrombolysis therapy‚ which involves dissolving the thrombus with an aim of re-opening the occluded artery was considered. However‚ although her initial CT Head confirmed she had not had a bleed (a contraindication to thrombolysis) she was not a suitable candidate as she woke up with the symptoms. Therefore
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Strokes and even mini-strokes are medical emergencies which may occur at least once in one’s lifetime. Learn what strokes are‚ their causes and effects so that you have sufficient knowledge to give you an opportunity to prevent major strokes which could cause devastating and permanent brain damage‚ coma and even death. A stroke strikes suddenly causing one in six people worldwide to have at least one stroke in their lifetime. The stroke happens fast especially when there is a blockage of blood flow
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progressive atherosclerosis and hence the chances of having a myocardial infarction‚ stroke and gangrene of the extremities (Ross‚ 1993). Myocardial infarction and stroke are possible fatal complications associated with atherosclerosis‚ as a piece of the thrombus can break off and travel to a smaller artery to block off blood flow to a part of the myocardium or
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Critical Care Outline Chapter 66 * Critical care nursing: specialty dealing with human responses to life-threatening problems. * Critical care units (CCUs) or ICUs: designed to meet the special needs of acutely and critically ill pt’s. * Types of critical care: system based‚ medical‚ surgical‚ trauma‚ burns‚ age specific * Rapid response team (RRTs): provide for the delivery of advanced care by specialized teams usually composed of: * A critical care nurse * A respiratory
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