File
... Repolarization – change in membrane potential from a positive state to a more negative state ...
... Repolarization – change in membrane potential from a positive state to a more negative state ...
Chest trauma Case Presentation
... • Second most common cause of sudden cardiac arrest in young athletes (behind HOCM). • The United States Commotio Cordis Registry (USCCR), in Minneapolis, Minnesota, reported that as of September 2001, only 180 cases had been documented. Up to 62% of these cases involved engagement in organized, co ...
... • Second most common cause of sudden cardiac arrest in young athletes (behind HOCM). • The United States Commotio Cordis Registry (USCCR), in Minneapolis, Minnesota, reported that as of September 2001, only 180 cases had been documented. Up to 62% of these cases involved engagement in organized, co ...
Arrhythmias An arrhythmia is a condition caused by a problem with
... with the heart's electrical system, which produces abnormal rhythms. These abnormal rhythms may make the heart pump less efficiently. Normally, the heartbeat begins in the right atrium when a special group of cells sends an electrical signal. This group of cells is called sinoatrial node. These cell ...
... with the heart's electrical system, which produces abnormal rhythms. These abnormal rhythms may make the heart pump less efficiently. Normally, the heartbeat begins in the right atrium when a special group of cells sends an electrical signal. This group of cells is called sinoatrial node. These cell ...
Paper Title (use style: paper title)
... within the atrium gives the sign or re-enters the local circuit. The tachycardia is caused by rapid firing. This arrhythmia is characterized by a deformation of the P wave, there is usually an increase in heart rate that begins and ends quickly, this may take a few minutes or hours. One example is d ...
... within the atrium gives the sign or re-enters the local circuit. The tachycardia is caused by rapid firing. This arrhythmia is characterized by a deformation of the P wave, there is usually an increase in heart rate that begins and ends quickly, this may take a few minutes or hours. One example is d ...
2. A condition in which one or both of the cusps of the mitral vlave is
... 17. The total amount of blood pumped/min is called cardiac ____. 19. The difference between cardiac output when a person is at rest and the maximum cardiac output is called cardiac ____. 22. Relaxation of a heart chamber. 23. The AV node extension into the interventricular septum is called the atrio ...
... 17. The total amount of blood pumped/min is called cardiac ____. 19. The difference between cardiac output when a person is at rest and the maximum cardiac output is called cardiac ____. 22. Relaxation of a heart chamber. 23. The AV node extension into the interventricular septum is called the atrio ...
Cardiac resynchronisation therapy
... The normal electrical system of the heart The heart has its own electrical conduction system. The conduction system sends signals throughout the upper chambers (atria) and lower chambers (ventricles) of the heart to make it beat in a regular, coordinated rhythm. The conduction system consists of two ...
... The normal electrical system of the heart The heart has its own electrical conduction system. The conduction system sends signals throughout the upper chambers (atria) and lower chambers (ventricles) of the heart to make it beat in a regular, coordinated rhythm. The conduction system consists of two ...
ANPS 020 Black 01-30
... SA node generates electrical signal which spreads through atria, so atria contract first, which completes the filling of ventricles The electrical activity slows at AV node, giving times for ventricles to fill Electrical signal finally passes into ventricles, contracting them from the apex toward th ...
... SA node generates electrical signal which spreads through atria, so atria contract first, which completes the filling of ventricles The electrical activity slows at AV node, giving times for ventricles to fill Electrical signal finally passes into ventricles, contracting them from the apex toward th ...
cardiovascular_system_quiz
... 7.The visceral layer is also known as the _____________. 8.Relaxation of the heart is also known as ____________. 9.T or F Cardiac output is the amount of blood ejected from each ventricle during a single contraction. 10.Blood is prevented from flowing back into the heart when the ventricles relax b ...
... 7.The visceral layer is also known as the _____________. 8.Relaxation of the heart is also known as ____________. 9.T or F Cardiac output is the amount of blood ejected from each ventricle during a single contraction. 10.Blood is prevented from flowing back into the heart when the ventricles relax b ...
Cardiovascular System
... 6. Which parts of the heart carry blood that is low in oxygen? 7. Which parts of the heart carry blood that is high in oxygen? 8. Which veins carry blood high in oxygen? 9. Which arteries carry blood that is low in oxygen? 10.What diagnostic test may be performed to detect abnormal electrical activi ...
... 6. Which parts of the heart carry blood that is low in oxygen? 7. Which parts of the heart carry blood that is high in oxygen? 8. Which veins carry blood high in oxygen? 9. Which arteries carry blood that is low in oxygen? 10.What diagnostic test may be performed to detect abnormal electrical activi ...
Cardiovascular and Peripheral Vascular Disorders
... – Treatment: • Emergency care – CPR – defibrillation (15-20 seconds of the onset) – medications » lidocaine, bretylium, or procainamide ...
... – Treatment: • Emergency care – CPR – defibrillation (15-20 seconds of the onset) – medications » lidocaine, bretylium, or procainamide ...
ECG Interpretation for the Veterinary Technician
... Obtaining a diagnostic ECG: The heart’s electrical activity creates currents that radiate through the patient`s surrounding tissue. The current travels through electrodes placed on the patient`s body and is transmitted to an ECG monitor. The information is then transformed into a waveform which allo ...
... Obtaining a diagnostic ECG: The heart’s electrical activity creates currents that radiate through the patient`s surrounding tissue. The current travels through electrodes placed on the patient`s body and is transmitted to an ECG monitor. The information is then transformed into a waveform which allo ...
ECG Assignment
... TP#1:__9mm___TP#2:___5mm______TP#3:___9mm____ Average=__(7.67mm)(1sec/20mm)= 0.38 sec_____ If the heart rate increased and the QT-interval was unchanged would the T-P time increase or decrease? WHY? Tough reality of the heart is that as the rate goes up, the heart spends less and less time in diast ...
... TP#1:__9mm___TP#2:___5mm______TP#3:___9mm____ Average=__(7.67mm)(1sec/20mm)= 0.38 sec_____ If the heart rate increased and the QT-interval was unchanged would the T-P time increase or decrease? WHY? Tough reality of the heart is that as the rate goes up, the heart spends less and less time in diast ...
Skipping the Beat The “Beatless” Heart
... • Blood pushes through each of the heart's four chambers • The pulse or “beat” allows for blood to circulate through the body efficiently Rather than using a “beating” mechanism that would mimic the body’s heart, Dr. Cohn and Dr. Frazier devised a system entirely different. • They interconnected two ...
... • Blood pushes through each of the heart's four chambers • The pulse or “beat” allows for blood to circulate through the body efficiently Rather than using a “beating” mechanism that would mimic the body’s heart, Dr. Cohn and Dr. Frazier devised a system entirely different. • They interconnected two ...
Development and clinical evaluation of long-term ECG
... localization of QRS complex was detected correctly in 99.5 percent of cases but duration of QRS complex was measured with accuracy of 90 percent, the classification of QRS complexes was performed with accuracy of 90.4 percent and diagnostic classification – with accuracy of 87.6 percent. It is neces ...
... localization of QRS complex was detected correctly in 99.5 percent of cases but duration of QRS complex was measured with accuracy of 90 percent, the classification of QRS complexes was performed with accuracy of 90.4 percent and diagnostic classification – with accuracy of 87.6 percent. It is neces ...
Heart Glossary – 20 Words You Should Know
... When untreated electrical problems in the heart cause death. Sudden cardiac death is usually caused by heart rhythms that are too fast. This condition is also called "cardiac arrest." Sudden cardiac death is different from a heart attack, which is caused when blood flow is interrupted and the heart ...
... When untreated electrical problems in the heart cause death. Sudden cardiac death is usually caused by heart rhythms that are too fast. This condition is also called "cardiac arrest." Sudden cardiac death is different from a heart attack, which is caused when blood flow is interrupted and the heart ...
Heart failure Ventricular insufficiency Left heart failure (LHF
... – SNS ⇒ ↑ HR, + ino, + bathmo, +dromo effects ⇒ possible rhythm disorders – RAAS ⇒ angiotensin ⇒ vasoconstriction and myocardial re-modulation ⇒ ALD ⇒ ↑ reabsorption of Na+ and H2O ⇒ Secondary hyperaldosteronism – ADH ⇒ vasoconstriction and resorption of H2O ...
... – SNS ⇒ ↑ HR, + ino, + bathmo, +dromo effects ⇒ possible rhythm disorders – RAAS ⇒ angiotensin ⇒ vasoconstriction and myocardial re-modulation ⇒ ALD ⇒ ↑ reabsorption of Na+ and H2O ⇒ Secondary hyperaldosteronism – ADH ⇒ vasoconstriction and resorption of H2O ...
(714616727) Project2015
... through adulthood. In a study of healthy members of the military, the incidence of PVCs was 0.5% among those under the age of 20 and 2.2% in those over the age of 50. PVCs occur more commonly in older people and in individuals with underlying heart disease, including a history of heart attack. Peopl ...
... through adulthood. In a study of healthy members of the military, the incidence of PVCs was 0.5% among those under the age of 20 and 2.2% in those over the age of 50. PVCs occur more commonly in older people and in individuals with underlying heart disease, including a history of heart attack. Peopl ...
1960 Cigarette smoking found to increase the risk of heart disease
... Syndromes (beyond STEMI, NSTEMI, UA) ...
... Syndromes (beyond STEMI, NSTEMI, UA) ...
- aes journals
... Hamiltonp[5] has developed a software for ECG beat detection and classification and made available as an open source system for use by researchers. silipo R and marchesis[6] used neural networks for automatic ECG analysis for the classification of different cardiac abnormalities. The premature ven ...
... Hamiltonp[5] has developed a software for ECG beat detection and classification and made available as an open source system for use by researchers. silipo R and marchesis[6] used neural networks for automatic ECG analysis for the classification of different cardiac abnormalities. The premature ven ...
Shortcut to Electrocardiography
... V3: Placed between leads V2 and V4. V4: Placed in the 5th intercostal space in the mid clavicular line. V5: Placed between the leads V4 and V6. V6: Placed in the 5th intercostal space in the mid axillary line. Leads specifying different region of the heart Inferior leads: Leads II, III and AVF. They ...
... V3: Placed between leads V2 and V4. V4: Placed in the 5th intercostal space in the mid clavicular line. V5: Placed between the leads V4 and V6. V6: Placed in the 5th intercostal space in the mid axillary line. Leads specifying different region of the heart Inferior leads: Leads II, III and AVF. They ...
The Heart Anatomy Questions
... 3. What is the function of the valves found in the heart? 4. Can the heart function with leaky valves? (think..can a water pump function with leaky valves?) 5. What is the role of the chordae tendineae? Part B: Pulmonary, Systemic, and Cardiac Circulations 1. Differentiate clearly between the roles ...
... 3. What is the function of the valves found in the heart? 4. Can the heart function with leaky valves? (think..can a water pump function with leaky valves?) 5. What is the role of the chordae tendineae? Part B: Pulmonary, Systemic, and Cardiac Circulations 1. Differentiate clearly between the roles ...
The heart - Heart Rhythm Alliance
... • The heart rate naturally varies, depending on activity and time of day ...
... • The heart rate naturally varies, depending on activity and time of day ...
Feel your heart beat at apex - Grosse Pointe Public School System
... specialized cardiac muscle cells that carry impulses throughout the heart musculature, signaling the chambers to contract in the proper sequence ...
... specialized cardiac muscle cells that carry impulses throughout the heart musculature, signaling the chambers to contract in the proper sequence ...
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.