Cardiac Cycle The cardiac cycle describes the coordinated and rhythmic series of muscular contractions associated with the normal heart beat. The cardiac cycle can be subdivided into two major phases‚ the systolic phase and the diastolic phase. Systole occurs when the ventricles of the heart contract. Accordingly‚ systole results in the highest pressures within the systemic and pulmonary circulatory systems. Diastole is the period between ventricular contractions when the right and left ventricles
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Sudden cardiac death happens more these days. There are so many people alone in the United States who just stops breathing with no heart disease involved. So why did their heart stop? There are so many researchers out there trying to figure out the underlying cause of these people who this happen to. There can be other reason why a person’s heart can stop without having a cardiac disease. A person’s body may store minerals that control the arrhythmia of the heart to act a different way.
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Cardiac catheterization is often referred to as coronary angiography or a coronary angiogram. It is a radiographic procedure that is used to look at and visualize the heart and the coronary arteries. During a cardiac catheterization it is possible for the cardiologist performing the procedure to see how effectively blood is flowing through the coronary arteries. In addition‚ this procedure allows the cardiologists to see how blood is moving through the chambers of the heart and how effective the
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The cardiac electrical activity is produced and controlled by the Sinoatrial (SA) node in the right atrium and the Atrioventricular (AV) node in the interatrial septum. The electrical signals move through the cardiac conduction system fibres causing the atria and ventricles to contract and relax regularly between 60-100 bpm [1].when those electrical signals are interrupted as a result of a damage in the conduction system‚ the heart rate would become irregular or would either increase resulting in
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Scars His racial status‚ his poverty‚ the disruption of his family‚ and his faulty education allowed Richard Wright to grow into a novelist astonishingly different than other major American writers. Richard Wright was born on a Rucker plantation in Adams County‚ Mississippi. He was born on September 4‚ 1908 to Ella Wilson‚ a schoolteacher and Nathaniel Wright‚ a sharecropper. When Wright was about six years old‚ his father abandoned Ella and his two sons in a penniless condition to run off with another
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is the symptom of acid reflux and GERD; however‚ not everyone with acid reflux has heartburn and not everyone with heartburn has acid reflux. The symptom of heartburn can also be caused by other unusual things such as intestinal motility problems. Cardiac problems can also mimic heartburn and you should not confuse the two. Unexplained chest pain should be evaluated by an exercise stress test or EKG prior to an evaluation for gastrointestinal
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curiosity on the meaning of life‚ questions about fate‚ and even examining his own life. I believe Richard Wright was trying to make sense of the meaning of life and the purpose of his own way of living. I began to notice Wright was trying to find the reasoning for racial segregation and the judging of one’s character based on race‚ religion‚ and even his way of life. At the age of eighteen‚ Richard Wright was soon drawn to H. L. Mencken because of a newspaper headline which stated “Mencken is a fool.” To
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Mr. Wright had advanced lymphosarcoma. He was declared a terminal patient and he only had a few weeks to live. He had tried almost everything‚ he had all but given up until he heard about an experimental treatment involving the drug called Krebiozen. He traveled to a Hospital that was conducting the experimental treatment and begged to become a subject‚ after continuous begging‚ lasting a few days‚ a doctor finally relented and allowed him to become a patient. Mr. Wright was given the medicine and
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Wrights philosophy of "organic architecture" was his way of saying that a building should be made out of its natural surroundings. Wright exposed daring originality in his work and rebelled versus the intricate shapes and Victorian styles. He thought that the architectural development must be set by the particular role for the building‚ its environment‚ and the type of accessories utilized in the structure. He brought the outside environment literally into Fallingwater. The four beams known as the
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Medications for cardiac arrest * Epinephrine 1mg iv bolus every 3-5 mins * Vasopressin- alternative to epinephrine * Treatment for vf‚ vt‚ pea‚ asystole * Dose: 40 units iv single * Norepinephrine – for severe hypotension * For low total peripheral resistant * Dose 0.1-0.5 mcg/kg/min infusion * Not use for cardiac arrest * Dopamine – Dose: 2-20 mcg/kg/min infusion‚ titrate to patient response * Do not administer in same iv line as Na bicarb * Dobutamine
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