abnormalities are a frequent and potentially hazardous complication in patients with heart failure. This may be due to the pathophysiological alterations seen in the heart failure state leading to neurohumoral activation (stimulation of the renin-angiotensin-aldosterone system‚ sympathoadrenergic stimulation)‚ and due to the complications of therapy with diuretics‚ cardiac glycosides or ACE inhibitors. Patients with heart failure may exhibit hyponatremia due to a decrease in water excretion‚ which may
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CHAPTER 3 Maternal Physiology Michael C. Gordon Body Water Metabolism 42 Osmoregulation 43 Salt Metabolism 43 Renin-Angiotensin-Aldosterone System 43 Atrial and Brain Natriuretic Peptide 44 Cardiovascular System 44 Heart 44 Cardiac Output 45 Arterial Blood Pressure and Systemic Vascular Resistance 46 Venous Pressure 47 Central Hemodynamic Assessment 47 Normal Changes That Mimic Heart Disease 47 Effect of Labor and the Immediate Puerperium 48 Respiratory System 49 Upper Respiratory
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A heart attack‚ also known as a myocardial infarction‚ usually occurs when a blood clot forms inside a coronary artery at the site of an atherosclerotic plaque. The blood clot severely limits or completely cuts off blood flow to part of the heart. In a small percentage of cases‚ blood flow is cut off when the muscles in the artery wall contract suddenly‚ constricting the artery. This constriction‚ called vasospasm‚ can occur in an artery that is only slightly narrowed by atherosclerosis or even in
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In congestive heart failure‚ the heart is not able to pump enough oxygen and nutrition to meet the requirements of the body and it may be chronic or acute. Heart failure is caused by many disorders that injure the heart muscles including‚ heart attack‚ cardiomyopathy‚ coronary artery disease‚ and conditions that overwork the heart‚ such as high blood pressure‚ diabetes‚ thyroid problems and kidney problems. At the point when a heart starts to fail‚ it causes additional liquid to develop in the body
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Medical Problem: High Blood Pressure (Hypertension) Patient: Megan Crozier 1. Define the health issue (the impact on the body) Hypertension is sustained elevation of resting systolic BP (≥ 140 mm Hg)‚ diastolic BP (≥ 90 mm Hg)‚ or both. High blood pressure is a common condition in which the force of the blood against your artery walls is high enough that it may eventually cause health problems‚ such as heart disease. Blood pressure is determined by the amount of blood your heart pumps and the
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Acute Coronary Syndrome Acute coronary syndrome is a term used for any condition brought on by sudden‚ reduced blood flow to the heart. Acute coronary syndrome symptoms may include the type of chest pressure that you feel during a heart attack‚ or pressure in your chest while you’re at rest or doing light physical activity. Acute coronary syndrome is treatable if diagnosed quickly. Acute coronary syndrome treatments vary‚ depending on your signs‚ symptoms and overall health condition. Acute coronary
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Capella University BIO1000 – Human Biology U01A1-Homeostasis-An Analogy January 12‚ 2012 Part 1 - Regulates your body temperature when you are outside on a cold winter day. When it is cold outside and the temperature drops‚ your body thermo receptors detect the drop and send signals to the hypothalamus. Neurons also send signals to smooth the walls of the blood vessels to make them contract‚ which creates a narrowing in the blood vessel also known as “vasoconstriction”. What vasoconstriction
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Chapter 39 Diuretics Open-Book Quiz‚ Chapter 39 1. Three uses of diuretics include treatment of hypertension‚ mobilization of edematous fluid‚ and used to prevent renal failure. 2. Aldosterone is the principal mineralocorticoid of the adrenal cortex; it stimulates reabsorption of sodium from the distal cortex. 3. Most diuretics share the same basic mechanism of action: they block sodium and chloride reabsorption. The greatest diuresis is produced by those drugs whose site of action
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Human homeostasis From Wikipedia‚ the free encyclopedia Human homeostasis is derived from the Greek‚ homeo or "constant"[dubious – discuss]‚ and stasis or "stable" and means remaining stable or remaining the same.[1] Homeostasis — also spelled homoeostasis or homœostasis (from Greek: ὅμοιος‚ "hómoios"‚ "similar"‚[1] and στάσις‚ stásis‚ "standing still"[2]) — is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples
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Lennox-Gastaut syndrome‚ a severe form of childhood epilepsy that also causes developmental and behavior problems. 4) Functional Groups: Carboxamide Triazole Fluropheny Enalapril 1) Structure 2) Name: Enalapril maleate 3) Enalapril is an angiotensin converting enzyme inhibitor. Enalapril is used to treat high blood pressure known as hypertension and congestive heart failure. Enalapril is also used to treat a disorder of the ventricles 4) Functional Groups Carbonyl Phenyl propyl Butenedioate
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