Blood Components Normally‚ 7-8% of human body weight is from blood. In adults‚ this amounts to 4.5-6 quarts of blood. This essential fluid carries out the critical functions of transporting oxygen and nutrients to our cells and getting rid of carbon dioxide‚ ammonia‚ and other waste products. In addition‚ it plays a vital role in our immune system and in maintaining a relatively constant body temperature. Blood is a highly specialized tissue composed of more than 4‚000 different kinds of
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account of blood pressure testing during a clinical simulative skill session The clinical skill that I have decided to reflect on in this essay is the manual blood pressure test that I have performed on one of my colleague during a simulative clinical skills session. The aim of this essay is to reflect on this experience‚ so as to learn from it‚ identify areas of concern and increase competence in this skill accordingly. To start the essay it is the custom to at least give a definition of blood pressure
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to talk to you about the importance of donating blood. Some of you may know a friend or even a family member who has received blood at some time. I for one have received blood and I often wonder who took the time to donate it. According to the Journal of American Medical Association‚ it is noted that just 1 pint of blood can save three lives. Why You Should Give Giving blood does not just benefit recipients. Regardless of age‚ donating blood offers many benefits for donors. It lets you:
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Blood Composition. The following are components of blood - red blood cells‚ white blood cells‚ platelets and plasma (the liquid component). Red blood cells are the pinky white circles‚ the white blood cells are the big red blobs. Red blood cells do not have a nucleus because they do not divide and multiply Red blood cells are bi-concave‚ they are donut shaped. Red blood cells contain a pigment called haemoglobin which can react with oxygen to form the unstable compound‚ oxy-haemoglobin. Hb+4O2
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seconds‚ someone is in desperate need of blood. So I’ll like too speak something regarding blood donation… We all need blood to survive‚ but for sick children‚ accident victims and cancer patients just to name a few – a shortage of donated blood means the difference between life and death. Today we have bio technologically engineered human organ that can be transplanted at time of need. But there is no substitute for blood. Blood donors are the only source of blood for these sick children‚ accident victims
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Hormones can react to increase blood pressure when it becomes low‚ the sympathetic division of the autonomic nervous system uses several ways to temporarily increase blood pressure when it has dropped for example during the fight or flight response. During the response‚ the sympathetic division is needed to stimulate the adrenal glands to release the hormones epinephrine and norepineprine which stimulate the heart to beat faster and for blood to flow more forcefully‚ this effect makes most of the
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in Shakespeare’s masterpiece‚ Romeo and Juliet‚ have many more layers to them then it may seem. There are several literary terms to show the layers that make up the characters. Shakespeare uses juxtaposition‚ oxymoron‚ and paradox as indirect characterization to show how complex Romeo‚ Juliet‚ and Friar Laurence are as characters. Juliet is young and has deep changing feelings. Many of the feelings she has toward Romeo are confusing ones‚ “honorable villain‚” (3.2.79). This oxymoron shows the passion
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Julianna Triano Block 4 November 19‚ 2010 Blood Donation Imagine a happy healthy teen. He does well in school and is easy to get along with. Imagine he is diagnosed with leukemia and requires daily platelet and blood transfusions just to stay alive. Now‚ imagine he has a rare blood type that requires him to be moved to a larger hospital for treatment. This is just another thing for him and his family to worry about. Similar stories happen every day in the United States. It is estimated that
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and my blood came into view. I felt horrified when the doctor squeezed my finger and I saw my own blood smear onto my skin. Immediately‚ I sensed that I would never outgrow my fear of blood. My imagination overpowered my reasoning at such a young age; my first experience with a piercing needle made me think that I could never handle blood and would always squeamishly tremble at its sight. Although I have always wanted to help those in need‚ I repeatedly rejected the idea to ever donate blood during
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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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