Burn Burn | Classification and external resources | Second-degree burn of the hand | A burn is a type of injury to flesh caused by heat‚ electricity‚ chemicals‚ light‚ radiation or friction. Most burns affect only the skin (epidermal tissue and dermis). Rarely‚ deeper tissues‚ such as muscle‚ bone‚ and blood vessels can also be injured. Burns may be treated with first aid‚ in an out-of-hospital setting‚ or may require more specialized treatment such as those available at specialized burn
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Contraindications Hypersensitivity to adenosine or any component of the formulation; second- or third-degree AV block‚ sick sinus syndrome‚ or symptomatic bradycardia (except in patients with a functioning artificial pacemaker); use in patients with atrial fibrillation/flutter with underlying Wolff-Parkinson-White (WPW) syndrome (Fuster‚ 2006); asthma (ACLS‚ 2010) In addition to the above‚ Adenoscan® should be avoided in patients with known or suspected bronchoconstrictive or bronchospastic lung disease. Acute
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Anatomy Review: The Heart Graphics are used with permission of: Pearson Education Inc.‚ publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Introduction • The heart is the transport system pump; the delivery routes are the blood vessels. Using blood as the transport medium‚ the heart propels oxygen‚ nutrients‚ wastes‚ and other substances to and past the body cells. Page 2. Goals • To review the anatomy of the heart. • To review the pulmonary and systemic circuits. • To review
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steadily from 123 to 76; both trending back towards the resting values. What happened to the T-P interval during exercise? Outline what this means for ventricular filling time. During exercise there was a significant drop in the T-P interval which then steadily increased when exercise was completed. The T-P interval represents a period between ventricular repolarization (T) and atrial depolarization (P) and shows the period when the ventricles are relaxed and heart is electrically silent. During this
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Circulatory System The heart is a cone –shaped muscular organ located within the ___(1)__ of the thorax. Its apex rests on the __(2)__ and its superior margin lies at the level of the __(3)__ rib. Approximately two-thirds of the heart mass is seen to the left of the __(4)__. The heart is enclosed in a serosa sac called the pericardium. The loosely fitting double outer layer consists of the outermost __(5)__ pericardium‚ lined by the parietal layer of the serous pericardium. The inner __(6)__pericardium
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into right atrium during ventricle contraction‚ PULMONARY VALVE- prevents blood from moving from pulmonary trun into right ventricle during ventricular relaxation‚ MITRAL VALVE- prevents blood from moving from left ventricle into right atrium during ventricular relaxation. AORTIC VALVE- prevents blood from moving from aorta into left ventricle during ventricular relaxation 6) Review the path of blood through the heart. As the right atrial wall contracts the blood passes through the tricuspid valve
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Chapter 14: Cardiovascular Physiology Cardiovascular Physiology Chapter 14 " Heart anatomy " Cardiac muscle cells " Autorhythmic cells " Cardiac cycle " Cardiac output " 1 Functions of Circulatory System " Transportation" – Respiration" Transport 02 and C02." – Nutrition" Absorbed digestion products delivered to liver and tissues" – Excretion" Carry metabolic wastes to kidneys" – Hormonal: " Carry hormones to target tissues" 2 The cardiovascular
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turbulent bloodflow • Systolic thrill: coincide with apex beat • Diastolic thrill: not coincide with apex beat C) Percussion: 5th intercostal space D) Auscultation: (most NB in cardio examination) 1. Normal heart sounds: S1: beginning ventricular systole – mitrial & tricuspid valve closure S2: end of systole – softer‚ shorter‚ higher pitch - aortic & pulmonary valve closure (5th intercostal space) 2. Splitting: - closure of pulmonary valves later than
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Pressure created by volume of blood on right side of heart; assess fluid balance/responsiveness Obtained through central line in vena cava‚ preferably through subclavian/internal jugular vein Measure at end expiration & end of ventricular diastole Fluid overload‚ right ventricular dysfunction‚ superior vena cava obstruction‚ right heart failure‚ pulmonary hypertension‚ severe vasocontriction‚ mechanical ventilation Causes jugular vein distension: To assess have pt supine w/HOB 30-45 degrees. Stand on
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Aging heart‚ is characterized by myocardial fibrosis and atrial dilation‚ which is a proper soil for AF to flourish. Atrial Fibrillation creates electrical and structural remodeling in the atria by shortening‚ mismatching‚ and lengthening the effective refractory period (increase of dispersion)‚ depressing the intra-atrial conduction‚ and depriving its contractile function (Karamichalakis‚& Letsas). Because A-Fib cases increase with age and women generally live longer than men‚ more women than men
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