The electrical activity of the heart: the electrocardiogram Electrical activity is a basic characteristic of the heart and is the stimulus for cardiac contraction. Disturbances of electrical function are common in heart disease. Their registration as an electrocardiogram (ECG) plays an essential role in the diagnosis and management of heart disorders. THE GENESIS OF THE ELECTROCARDIOGRAM Pathways of conduction and the electrocardiogram The sinus node is situated in the right atrium
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CARDIAC IMAGING Teresa Mann 19372634 1196782 Charles Tew‚ MD BD: 10 November 60 2 January — — HISTORY CHEST PAIN. CARDIAC IMAGING (Dobutrex/Myoview) RESTING IMAGES WERE OBTAINED AFTER THE INJECTION OF 10 MCI OF MYOVIEW. SUBSEQUENTLY‚ THE PATIENT HAD DOBUTREX INFUSION ACCORDING TO OUR STANDARD PROTOCOL‚ REACHING A MAXIMUM HEART RATE ‚WITH THE HELP OF 0.5 MG OF ATROPINE IV‚ OF 144 BPM WITH A TARGET HEART RATE OF 135 BPM. THERE WAS A RESTING LEFT BUNDLE BRANCH BLOCK WITH NO ISCHEMIC
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Introduction The heart is an extremely important organ in the human body‚ and it must be able to adjust the heart rate for when a person is resting or for when a person is running. Heart rate is defined as the number of heartbeats per unit of time‚ usually per minute (Medicine-Net). The heart rate is based on the number of contractions of the ventricles. The pulse is defined as a bulge of an artery from waves of blood that course through the blood vessels each time the heart beats (Medicine-Net)
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Left Sided Heart Failure When the left side of the heart is not able to pump enough blood forward the blood will back up into the lungs. This stops the rest of the body from receiving the oxygen its needs because the blood is in the lungs so tiredness and shortness of breath are very common. Right Sided Heart Failure When the right side of the heart is not able to pump efficiently. This causes blood to back up in the veins and other parts of the body causing swelling in the body including
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West Virginia University at Parkersburg Nursing 131 – Physical Assessment Case Study – Cardiovascular Disease Nancy Riverhawk is a 75-year-old woman who presents to the provider’s office with fatigue. Subjective Data PMH: HTN‚ hyperlipidemia‚ MI 3 years ago Fatigue started about 1 month ago‚ getting worse Relieved with rest‚ exacerbated with activity Denies pain chest Ankles swollen Objective Data Vital signs: T 37‚ P 112‚ R 18‚ BP 110/54 Lungs: bilateral lower lobe crackles
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For this third clinical‚ I observed a situation where a student was having chest pain and was constantly shaking. Whenever his chest pain would return‚ his heart rate would increase. I was able to tell he was uncomfortable and in pain due to his behavior. The student would clench his chest with his arms and rub his chest whenever his chest pain would return. As indicated before‚ he had an elevated HR only during chest pain‚ but his overall vital signs were normal. Whenever he would stand up‚ he would
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Engr 4132 Biomedical Engineering Lab Dr. Gang Xu Lab #9: ECG & Pulse Mechanical Action of the Heart Peripheral Pressure Pulse Plethysmography By: Abigail Magee Partners: Lauren Tinnin Nick Walker Date: 11/05/2015 Introduction: The heart goes through a cardiac cycle in order to pump blood throughout the body. This cycle is started by electrical activity that can be measured by an electrocardiogram. As the heart contracts‚ it pumps blood into the next section of the cardiac
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In the movie John Q‚ John Archibald is faced with the issue of his son‚ Mike‚ needing a heart transplant. The insurance company that was used by his job denied the funds for the transplant because John was bumped down to part time from the slow season and they changed his insurance plan without informing him. Because of that‚ he and his wife‚ Denise‚ had to pay the two hundred and fifty thousand dollar bill themselves. But before Mike’s name could even be put on the donor receiver’s list‚ they had
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Oxygen Supply and Demand Analysis Oxygen Supply To determine Mr. Stewart’s overall oxygen supply‚ we assessed his cardiac output and arterial oxygen content. Each of these components contribute to oxygen supply and will be discussed in more detail below. Cardiac Output Cardiac output is the amount of blood ejected from the heart in one minute and is calculated by multiplying stroke volume and heart rate (Gillespie‚ 2012b). Stroke volume is influenced by preload‚ afterload‚ and contractility. Preload
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Sherri Nichols June 2‚ 2012 Advanced Surgical Techniques Advancements in Surgical Technology: Pacemakers Prepared for Rebecca Hall Since 1932‚ cardiac arrhythmias have been treated by the use of pacemakers. According to the article‚ “The Evolution of Pacemakers”‚ “An artificial pacemaker is a device that delivers a controlled‚ rhythmic electric stimulus to the heart muscle in order to maintain an effective cardiac rhythm for long periods of time” (Sandro A.P. Haddad‚ 2006). In the earliest
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