Physiology Lab - University of Warwick
... wave the repolarisation of the ventricle. Information about diseases of the heart can be obtained clinically from changes in this basic pattern. Since the heart beat is conducted through a complex, three dimensional structure, clinicians use several ‘leads’ to look at its spread from several differe ...
... wave the repolarisation of the ventricle. Information about diseases of the heart can be obtained clinically from changes in this basic pattern. Since the heart beat is conducted through a complex, three dimensional structure, clinicians use several ‘leads’ to look at its spread from several differe ...
digoxin - Cardiology
... Sick sinus syndrome –lengthening of sinus node recovery time and sino atrial conduction time ...
... Sick sinus syndrome –lengthening of sinus node recovery time and sino atrial conduction time ...
Physiology Lab - University of Warwick
... efficiently into the aorta (from the left ventricle) and the pulmonary trunk (from the right ventricle). The electrical means of conduction is associated with the flow of current in extracellular fluid, and the effects of this current can be picked up by electrodes placed at appropriate positions on ...
... efficiently into the aorta (from the left ventricle) and the pulmonary trunk (from the right ventricle). The electrical means of conduction is associated with the flow of current in extracellular fluid, and the effects of this current can be picked up by electrodes placed at appropriate positions on ...
Heart failure - Medically fit for exams
... o Prevents normal contraction of the heart muscle Mitral regurgitation o May result from remodelling o Inability of mitral valve to close fully, allowing blood to lead back in during systole o Back-leak increases the volume load on the left ventricle and contributes further to remodelling (hypertrop ...
... o Prevents normal contraction of the heart muscle Mitral regurgitation o May result from remodelling o Inability of mitral valve to close fully, allowing blood to lead back in during systole o Back-leak increases the volume load on the left ventricle and contributes further to remodelling (hypertrop ...
Author keywords
... (GSPECT) have been validated, experimental data have revealed that the calculated the LV function parameters using GSPECT are affected by patient populations as well as particular acquisition and processing conditions. We tried to determine the normal values of GSPECT in an Iranian population. Metho ...
... (GSPECT) have been validated, experimental data have revealed that the calculated the LV function parameters using GSPECT are affected by patient populations as well as particular acquisition and processing conditions. We tried to determine the normal values of GSPECT in an Iranian population. Metho ...
Identification of ECG Arrhythmias using Phase Space Reconstruction
... of a large electrical current through the heart muscle. Automatic defibrillators, both internal and external to the body, have proven to be the only therapy for thousands of individuals whom experience ventricular arrhythmia. There is evidence [2] to suggest that the sooner electronic therapy is del ...
... of a large electrical current through the heart muscle. Automatic defibrillators, both internal and external to the body, have proven to be the only therapy for thousands of individuals whom experience ventricular arrhythmia. There is evidence [2] to suggest that the sooner electronic therapy is del ...
What-you-should-know-KA-5-6
... called __________________. During a cardiac cycle two separate heart ____________________ can be heard; each indicates the ___________________ of a set of valves. 11. Heartbeat is initiated in the heart itself by the __________________ cells of the __________________ node (pacemaker) ...
... called __________________. During a cardiac cycle two separate heart ____________________ can be heard; each indicates the ___________________ of a set of valves. 11. Heartbeat is initiated in the heart itself by the __________________ cells of the __________________ node (pacemaker) ...
Circulatory System and Heart
... which nerves are responsible for changing heart rate 4) Understand the position and role of the pericardium 5) Describe the external features of the heart 6) Identify the great vessels, their major branches, and the coronary vessels, and describe their location relative to the heart, and the general ...
... which nerves are responsible for changing heart rate 4) Understand the position and role of the pericardium 5) Describe the external features of the heart 6) Identify the great vessels, their major branches, and the coronary vessels, and describe their location relative to the heart, and the general ...
Weekly EMS Drill
... allowing the cell to hyperpolarize. So, again, technically it does NOT “speed up the heart rate”; more accurately the effect of atropine is to block the action of the muscarinic receptor sites that are trying to slow the heart rate down. In the absence of this muscarinic activity, the beta cells wou ...
... allowing the cell to hyperpolarize. So, again, technically it does NOT “speed up the heart rate”; more accurately the effect of atropine is to block the action of the muscarinic receptor sites that are trying to slow the heart rate down. In the absence of this muscarinic activity, the beta cells wou ...
CARD 115 Non-Invasive Testing - My SMCC
... Duplex charges (printing on both sides of a page) work in the following fashion: One page is $0.10, two pages are $0.10, three pages are $0.20, and four pages are $0.20, etc. The flipsides are free, but another sheet of paper is $0.10. Please be aware that a document with any color at all (when prin ...
... Duplex charges (printing on both sides of a page) work in the following fashion: One page is $0.10, two pages are $0.10, three pages are $0.20, and four pages are $0.20, etc. The flipsides are free, but another sheet of paper is $0.10. Please be aware that a document with any color at all (when prin ...
Chapter 20 The Heart
... During fetal life, a temporary blood vessel called ________________, connects pulmonary trunk to the aorta, this blood vessels closes shortly after birth, leaving a remnant called _________________ . ...
... During fetal life, a temporary blood vessel called ________________, connects pulmonary trunk to the aorta, this blood vessels closes shortly after birth, leaving a remnant called _________________ . ...
THE NEW ARMENIAN MEDICAL JOURNAL
... research involved examination of 384 newborns at the age of 0-8 days at gestation period of 39.2±1.7 weeks who showed clinical signs of the cardiovascular system (tachy-, bradyarrythmia, systolic murmur, and perioral cyanosis). Thirty seven infants showed heart rhythm disorder. Evaluation of risk fa ...
... research involved examination of 384 newborns at the age of 0-8 days at gestation period of 39.2±1.7 weeks who showed clinical signs of the cardiovascular system (tachy-, bradyarrythmia, systolic murmur, and perioral cyanosis). Thirty seven infants showed heart rhythm disorder. Evaluation of risk fa ...
ASD-Atrial Septal Defect
... return to our Cardiology clinic at times. These visits may only be as often as every year or two. Adults and children with atrial septal defects have no restrictions. They should keep on leading healthy, normal lives. Treatment Some ASDs close up and require no further treatment. The reasons to repa ...
... return to our Cardiology clinic at times. These visits may only be as often as every year or two. Adults and children with atrial septal defects have no restrictions. They should keep on leading healthy, normal lives. Treatment Some ASDs close up and require no further treatment. The reasons to repa ...
Patent Ductus Arteriosus Explained - New
... HOW IS PDA DIAGNOSED? A characteristic murmur can be heard in patients with a patent ductus arteriosus. The murmur is described as sounding like a washing machine and is often called a “continuous” murmur. The best way to diagnose a PDA is to perform an echocardiogram (heart ultrasound). This gives ...
... HOW IS PDA DIAGNOSED? A characteristic murmur can be heard in patients with a patent ductus arteriosus. The murmur is described as sounding like a washing machine and is often called a “continuous” murmur. The best way to diagnose a PDA is to perform an echocardiogram (heart ultrasound). This gives ...
Section 10 (More prefixes)
... identified by squeezing the heart, since the myocardium on the right side is much less rigid than that of the left ventricle. This incision allows us to see the tricuspid valve and the right ventricular outflow tract which includes the pulmonary valve. ...
... identified by squeezing the heart, since the myocardium on the right side is much less rigid than that of the left ventricle. This incision allows us to see the tricuspid valve and the right ventricular outflow tract which includes the pulmonary valve. ...
Arrhythmia Monitoring Arrhythmia Monitoring
... Professor of Medicine & Nursing University of California, San Francisco UCSF ...
... Professor of Medicine & Nursing University of California, San Francisco UCSF ...
AP151 HEART SLIDES-
... Heart receives constant input from BOTH systems • balance of SD and PD determines if HR goes up or down • At rest Parasympathetic signals predominate and this depresses the heart rate below the SA nodes intrinsic rate of ~100 bpm ...
... Heart receives constant input from BOTH systems • balance of SD and PD determines if HR goes up or down • At rest Parasympathetic signals predominate and this depresses the heart rate below the SA nodes intrinsic rate of ~100 bpm ...
Nursing Diagnosis - Faculty Sites
... • All criteria same as with NSR except rate >100 • Causes: fever, dehydration, hypovolemia, increased sympathetic nervous system stimulation, stress, exercise, AMI • S/S: Palpations #1, angina and < CO from < V filling time • Treatment: correct cause, eliminate caffeine, nicotine, alcohol. Beta bloc ...
... • All criteria same as with NSR except rate >100 • Causes: fever, dehydration, hypovolemia, increased sympathetic nervous system stimulation, stress, exercise, AMI • S/S: Palpations #1, angina and < CO from < V filling time • Treatment: correct cause, eliminate caffeine, nicotine, alcohol. Beta bloc ...
Near-Syncope After Exercise
... A, A pure cardioinhibitory response produces a reflex slowing ofthe heart and may produce sinus arrest or asystole. A fall in systolic bloodpressure typically occurs deriving from and proportional to the extent andduration of the decrease in heart rate. During carotid sinus massage, a positivecardio ...
... A, A pure cardioinhibitory response produces a reflex slowing ofthe heart and may produce sinus arrest or asystole. A fall in systolic bloodpressure typically occurs deriving from and proportional to the extent andduration of the decrease in heart rate. During carotid sinus massage, a positivecardio ...
Study Guide For Circulatory System
... What type of blood vessels are the most muscular and elastic?____________ The artery in the arm usually used to measure blood pressure is the____________ The upper chambers of the heart are called___________the lower chambers of the heart are called:________________ What vessel contains the highest ...
... What type of blood vessels are the most muscular and elastic?____________ The artery in the arm usually used to measure blood pressure is the____________ The upper chambers of the heart are called___________the lower chambers of the heart are called:________________ What vessel contains the highest ...
Notes
... a) may be caused by elevated temp, certain drugs, stress, or heart disease 2) Bradycardia – less than 60 beats per minute a) may be caused by low temp, certain drugs, or parasympathetic activation 3) Fibrillation – uncoordinated or quivering heartbeat a) caused by damage/defect of conduction system ...
... a) may be caused by elevated temp, certain drugs, stress, or heart disease 2) Bradycardia – less than 60 beats per minute a) may be caused by low temp, certain drugs, or parasympathetic activation 3) Fibrillation – uncoordinated or quivering heartbeat a) caused by damage/defect of conduction system ...
SAED Recert - Hamilton Health Sciences
... DO NOT assume that since there is a rhythm on the screen that the patient has a pulse!! ...
... DO NOT assume that since there is a rhythm on the screen that the patient has a pulse!! ...
2012-gemc-res-vinesyoungquist
... We have reviewed this material in accordance with U.S. Copyright Law and have tried to maximize your ability to use, share, and adapt it. These lectures have been modified in the process of making a publicly shareable version. The citation key on the following slide provides information about how yo ...
... We have reviewed this material in accordance with U.S. Copyright Law and have tried to maximize your ability to use, share, and adapt it. These lectures have been modified in the process of making a publicly shareable version. The citation key on the following slide provides information about how yo ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.