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Free research papers and essays on topics related to: fibrillation
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- Cardiac Pacemakers - 1,389 words
... early device has only one wire and paces the ventricles at regular intervals. The pacing rate, usually around seventy beats a minute, is determined by a physician. The ECG in a patient with a VVI pacemaker shows a sharp spike of the pacemaker artifact before each paced beat, followed by a wide QRS wave. No pacemaker spike is present on sensed beats. Retrograde conduction of the paced impulse from the ventricles to the atria, VA conduction, may not be present. If it is present, retrograde P waves follow the paced QRS complex. When VA conduction is absent, dissociated atrial activity is seen. Ventricular demand pacemakers are found in patients who: are physically inactive, regardless of ag ...
Related: cardiac, problems encountered, technological advances, york academy, timing
- Death Penalty - 1,191 words
Death Penalty Matchmaker.com: Sign up now for a free trial. Date Smarter! Death Penalty Electric chair, gas chamber, lethal injection, firing squad, hanging, guillotine, and garroting. When you hear these words what do you think of? Do you feel frightened? When some hear these words they tend to say, " Oh they deserve it". In the court system that is not always the case. The question you always have to ask yourself is what did the accused do and do they deserve the death penalty? What is bad enough to deserve death? Are their certain crimes that do and then some that do not? Almost every culture through out history has relied on the death penalty and capital punishment and justified as a nec ...
Related: death penalty, penalty, heart attack, blood cells, electricity
- Dothiepin Vs Fluoxetine Mechanism Of Action And Pharmacodynamics - 1,290 words
Dothiepin Vs. Fluoxetine (Mechanism Of Action And Pharmacodynamics) Comparison Between Mechanism of Action and Pharmacodynamics of Dothiepin and Fluoxetine Description of medicines Mechanism of action and pharmacodynamics Dothiepin Dothiepin is a tricyclic antidepressant. It acts by promoting the effectiveness of several amines (dopamine, norepinephrine, and 5-hydroxytryptamine, which is also known as 5HT and serotonin). It functions by inhibiting their reuptake at the terminals of nerve cells, thus leading to their prolonged presence at the synaptic cleft and an increased effect on the neuron.(1) The reuptake pumps for the above amines are responsible for reducing the concentration of these ...
Related: mechanism, gastrointestinal tract, heart disease, new zealand, linear
- Introduction - 2,230 words
... sured from the end of the S wave to the beginning o f the T wave. This important segment represents a period of time during which no electrical currents are flowing through the heart. Depolarization finishes with the end of the S wave and ventricular repolarization does not begin until the T wave. The ST segment is therefore isoelectric. This segment is clinically important because currents of injury associated with ischemia and infarction are reflected as elevations or depressions in the level of the ST segment, Murphy, (1991). QT Interval The QT interval is measured from the beginning of the QRS complex to the end of the T wave. This interval represents the entire time required for ven ...
Related: american family, internal medicine, chest pain, illinois, cardiac
- Myocardial Infarction - 594 words
Myocardial Infarction MYOCARDIAL INFARCTION When someone has a myocardial infarction (MI) people think a cold, right? "Well it's not, it's a heart attack!" It's the number one cause of death in the United States and kills about 330,000 Americans each year. People don't realize how big the effect of a heart attack is until they experience their own. By then it is to late! Here are some information explaining the causes, symptoms, and the solution of a heart attack that will help you, your family, and friends. Heart attacks are a coronary heart disease and a form of a cardiovascular disease. Myocardial infarction is caused by a clot formation or spasms in the arteries that supply the blood (a ...
Related: infarction, myocardial, myocardial infarction, stop smoking, family member
- Nursing Care Plan - 4,502 words
Nursing Care Plan Course: NUR 1210L Instructor: Dates of Care: 12, 13, 19 & 20 Sept 96 Date Submitted: 11/15/96 Student Names: Anthony Bernardi, SN/SPJC HOLISTIC NURSING CARE PLAN STUDENT Anthony Bernardi GRADE DATE November 15, 1996 Client's Clinical Picture (5) (Initial Cephacaudal assessment) Textbook Description of Diagnosis (5) Summary of Client's Progress (5) Completion of Holistic NCP Tool (30) NURSING DIAGNOSIS (15) GOALS (10) INTERVENTIONS (10) RATIONALES (5) EVALUATIONS (10) REFERENCES (5) TABLE OF CONTENTS SUBJECT PAGE # Cover Page 1 Grading Point Scale 2 Table of Contents 3 Summary Page 4 Client's Clinical Picture (Cephacaudal Assessment) 5 Medical Diagnosis 6 Textbook Des ...
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