begins in an area of the heart called the Sino atrial node (also called the sinus node). The signal moves through the upper heart chambers and tells the atria to contract. The sinus node is a natural pacemaker that controls the rhythm of the heart. Electrical impulses travel from the natural pacemaker through the atria then pass through a filter before running down specialized fibers that activate the ventricles. The atria are above the ventricles‚ thus the term supraventricular. The term tachycardia
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Chapter 12: Cardiovascular System 12.1 3 types of blood vessels * Arteries: carry blood away from the heart to the capillaries * Capillaries: permit exchange of material with the tissues * Veins: return blood from the capillaries to the heart. Arteries Wall has 3 layers * Endothelium: inner layer‚ made up of simple squamous epithelium‚ with a connective tissue basement membrane that has elastic fibers. * Middle layer: thickest later and consists of smooth muscle that can
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Cardiovascular System Worksheet (There are two pages to this worksheet!) NAME: John‚ Due Complete the following steps: Login to ADAM and view the following clinical animations: Heartbeat Cardiac Conduction System Electrocardiogram interactive Blood Pressure Answer the following questions. Save your answers as a Word document and submit to the week 5 dropbox. 1. Track a drop of blood from its entry into the right atrium until it leaves the left ventricle. Be sure to
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Individual Comparative Analysis Memo Accounting – Annual Report Project Fall 2009 Annual Report Project | SJM | Medtronic | | 2008 | 2008 | Profitability Ratios | | | Return on Equity | 12.5% | 17.8% | Return on Assets | 13.13% | 7.9% | Earnings per Share | $1.12 | $1.94 | Return on Sales | 8.81% | 14.86% | Gross Margin Percentage | 73.17% | 80.60% | Solvency Ratios | | | Current Ratio | 2.02 | 2.37 | Working Capital | 1‚051‚539* | 4‚313** | Quick Ratio | 1.20
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MESSAGING (QUESTIONS AND ANSWERS) The messaging below should be used only on a reactive basis with customers. General Questions Q1. What is the goal of the Medtronic and Aetna collaboration? The overarching goal of the collaboration is to improve the outcomes for Aetna members with Type 2 diabetes‚ through pump therapy‚ and to help healthcare providers more easily identify and support those who can benefit most from this therapy. By providing selected members with access to insulin pump therapy‚
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Cardiomyopathy also known as the “heart muscle disease” is a deterioration of the function of the myocardium. This sometimes leads to heart failure. People with this disease are often at risk of dangerous forms of irregular heartbeat and sudden cardiac death. The term cardiomyopathy generally apply’s to any disease affecting the heart. Usually it is used for severe myocardial disease leading to heart failure. Different cases of myocardial diseases can be categorized as extrinsic or intrinsic. The
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better understand aspect of providing holistic nursing care one must have an in-depth understanding of primary body systems and their pathology. This paper will educate the prudent nurses who read it with detailed information about the specific cardiac pathology of atrial fibrillation. Written with a basic understanding of human heart function/structure as a prerequisite‚ this paper will first discuss key terms one must be familiar with before providing researched information explaining the pathophysiology
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Treatment for heart valve problems include: various medications and heart valve surgery. For the types of arrhythmia treatment will include: medications‚ a pacemaker‚ and cardiac defibrillation. After a heart attack the best way to prevent further attacks are: changing unhealthy life style‚ medications‚ cardiac angioplasty‚ and coronary artery bypass graft surgery. For a stroke a doctor will prescribe: medications taken every three hours and carotid
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THE HURDLES OF OBTAINING A MEDICAL A medical certificate is basically a statement from a doctor certified by the FAA‚ also known as an Aviation Medical Examiner (AME)‚ saying that the airman is physically safe to fly an airplane under normal conditions. It is the doctor’s job to find a reason to prove that you do not deserve a medical because flying can be very dangerous and fatal. The doctor will put you through several tests that are putting your body to different extremes trying to find some
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effects and contraindications of each drug will be discussed. Ivabradine: Mechanism Of Action: Ivabradine blocks the hyperpolarization-activated cyclic nucleotide-gated (HCN) channel which is responsible for the cardiac pacemaker I(f) current. In clinical electrophysiology studies‚ the cardiac effects were most pronounced in the sinoatrial (SA) node‚ but prolongation of the AH interval has occurred on the surface ECG‚ as has PR interval prolongation Principal Adverse Effects: -Bradycardia -First- degree
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