Quiz 3 Practice Questions For each of the following ionic species
... Refractoriness is the inability to fire off an action potential for a short duration following activation. This phenomenon is primarily caused by channel inactivation, which blocks ion current generation upon subsequent depolarization. In fast-response cells (like ventricular myocardium) during the ...
... Refractoriness is the inability to fire off an action potential for a short duration following activation. This phenomenon is primarily caused by channel inactivation, which blocks ion current generation upon subsequent depolarization. In fast-response cells (like ventricular myocardium) during the ...
Overview: Any irregular heart beat is called an arrhythmia. Some
... Key to estimating likely underwriting action is the determination of the type of arrhythmia diagnosed for a proposed insured, and the presence of any complicating variables (i.e. related disease). Many cases of arrhythmia are underwritten on a standard basis. However, some arrhythmias, especially th ...
... Key to estimating likely underwriting action is the determination of the type of arrhythmia diagnosed for a proposed insured, and the presence of any complicating variables (i.e. related disease). Many cases of arrhythmia are underwritten on a standard basis. However, some arrhythmias, especially th ...
SEMESTER 5 – WEEK 4 PHARMACOLOGY ANTIARRHYTHMIC
... – Pacemaker impulse formation – Contraction impulse conduction – Combination of the two Results in rate and/or timing of contraction of heart muscle that is insufficient to maintain normal cardiac output (CO) To understand how antiarrhythmic drugs work, need to understand electrophysiology of normal ...
... – Pacemaker impulse formation – Contraction impulse conduction – Combination of the two Results in rate and/or timing of contraction of heart muscle that is insufficient to maintain normal cardiac output (CO) To understand how antiarrhythmic drugs work, need to understand electrophysiology of normal ...
A1981LB38400001
... PEP/LVET, as a convenient quantitative expression of the overall changes in systolic intervals accompanying left ventricular decompensation. This PEP/LVET ratio is now the most commonly applied measure of systolic time intervals for the evaluation of global left ventricular function in man. It was i ...
... PEP/LVET, as a convenient quantitative expression of the overall changes in systolic intervals accompanying left ventricular decompensation. This PEP/LVET ratio is now the most commonly applied measure of systolic time intervals for the evaluation of global left ventricular function in man. It was i ...
A MORMOPHETRIC STUDY OF DOMESTIC CARNIVOROUS
... Otherwise, the ratio HW/BW shows variations among the age and the weight of the dogs. • Morphometric parameters are specific of specie. • Cats show a higher variability of the measures than dogs. • The ratio LV+S/RV indicates left ventricular hypertrophy when it is greater than 5.8 for cats and 4.8 ...
... Otherwise, the ratio HW/BW shows variations among the age and the weight of the dogs. • Morphometric parameters are specific of specie. • Cats show a higher variability of the measures than dogs. • The ratio LV+S/RV indicates left ventricular hypertrophy when it is greater than 5.8 for cats and 4.8 ...
280208.ppt
... Identify key clinical information Include specific information in query Make the clinical case to support your question Remember: – Non-leading – Nonthreatening – Professional ...
... Identify key clinical information Include specific information in query Make the clinical case to support your question Remember: – Non-leading – Nonthreatening – Professional ...
Right ventricular free wall dyskinesis in the setting
... regards to measurement of myocardial thickness between compacted and non-compacted regions [4]. CMR is also helpful in determining the function of both right and left ventricles in a manner more precise than echocardiography. While LVNC was traditionally thought to affect only the LV, it is now kno ...
... regards to measurement of myocardial thickness between compacted and non-compacted regions [4]. CMR is also helpful in determining the function of both right and left ventricles in a manner more precise than echocardiography. While LVNC was traditionally thought to affect only the LV, it is now kno ...
ECG NOTES
... • Rate is usually normal and may be regular except when PVC occurs. PVC may occur alone at regular intervals (bigeminy, trigeminy) or in clusters (salvos). If 6 or more PVCs occur in 1 minute, the heart is becoming very irritable and ventricular tachycardia can begin at any time. ...
... • Rate is usually normal and may be regular except when PVC occurs. PVC may occur alone at regular intervals (bigeminy, trigeminy) or in clusters (salvos). If 6 or more PVCs occur in 1 minute, the heart is becoming very irritable and ventricular tachycardia can begin at any time. ...
MANAGEMENT OF RAPID ATRIAL FIBRILLATION IN EMERGENCY
... Atrial fibrillation (AF) is identified by a sustained irregularly irregular heart beat and the absence of p waves on the ECG. In most instances the QRS complex will be narrow but as the ventricular response increases the QRS complex may widen due to aberrant conduction. The QRS complexes will also b ...
... Atrial fibrillation (AF) is identified by a sustained irregularly irregular heart beat and the absence of p waves on the ECG. In most instances the QRS complex will be narrow but as the ventricular response increases the QRS complex may widen due to aberrant conduction. The QRS complexes will also b ...
Automated External Defibrillators (AEDs) Potential areas and targets
... • 140,000 deaths per year in the UK***. * World Health Organization – 2004 Statistics ** American Heart Association *** Meditrain, UK ...
... • 140,000 deaths per year in the UK***. * World Health Organization – 2004 Statistics ** American Heart Association *** Meditrain, UK ...
Cardiovascular Risk Factors and Atrial Fibrillation: What is the
... In their paper published in the February issue of JAFIB, Dr. Barrios and colleagues further examine the association between atrial fibrillation, classical coronary risk factors, proven cardiovascular preventive therapies and end-organ damage in 2024 patients with documented hypertension and coronary ...
... In their paper published in the February issue of JAFIB, Dr. Barrios and colleagues further examine the association between atrial fibrillation, classical coronary risk factors, proven cardiovascular preventive therapies and end-organ damage in 2024 patients with documented hypertension and coronary ...
Snímek 1 - med.muni
... refers to the alteration in size, shape and thickness of both the infarcted myocardium (which thins and expands) and the compensatory hypertrophy that occurs in other areas of the myocardium. The resultant global ventricular dilatation may help maintain the stroke volume of the heart. ...
... refers to the alteration in size, shape and thickness of both the infarcted myocardium (which thins and expands) and the compensatory hypertrophy that occurs in other areas of the myocardium. The resultant global ventricular dilatation may help maintain the stroke volume of the heart. ...
I. Cardiac Cycle A. Systole – Contraction of Ventricles (unless noted
... E. Electrocardiography - Electrocardiogram (EKG or ECG) 1. Components of the ECG a. Standard grid 1) x axis measures time in seconds (s) 2) y axis measures amplitude in millivolts (mV) b. Isoelectric line – baseline c. Deflection waves – record voltage and time of electrical events of large amounts ...
... E. Electrocardiography - Electrocardiogram (EKG or ECG) 1. Components of the ECG a. Standard grid 1) x axis measures time in seconds (s) 2) y axis measures amplitude in millivolts (mV) b. Isoelectric line – baseline c. Deflection waves – record voltage and time of electrical events of large amounts ...
The process of coronary atherosclerosis
... Arrhythmias, both ventricular tachyarrhythmias and heart block, can occur during the ischaemic episode. Cardiac syndrome X refers to those patients with a good history of angina, a positive exercise test and angiographically normal coronary arteries. They form a heterogeneous group and the syndrome ...
... Arrhythmias, both ventricular tachyarrhythmias and heart block, can occur during the ischaemic episode. Cardiac syndrome X refers to those patients with a good history of angina, a positive exercise test and angiographically normal coronary arteries. They form a heterogeneous group and the syndrome ...
上海第二医科大学仁济临床医学院
... Ventricular tachycardia is a run of three or more PVCs. Ventricular fibrillation occurs when the ventricles stop beating and, instead, fibrillate or twitch in an ineffective fashion. It is one of the three major ECG patterns seen with cardiac arrest; the other two are asystole and electromechani ...
... Ventricular tachycardia is a run of three or more PVCs. Ventricular fibrillation occurs when the ventricles stop beating and, instead, fibrillate or twitch in an ineffective fashion. It is one of the three major ECG patterns seen with cardiac arrest; the other two are asystole and electromechani ...
Is Transesophageal Echocardiography May Be Useful Diagnosis of
... deep inter-trabecular recesses (DITR), which relation with ventricular lumen and regional wall motion abnormalities [1-3]. Left VNC is myocardial disease with a genetic basis that lead to heart failure, arrhythmia, sudden death (SCD), and thromboembolism [4]. It is true that the diagnosis of this di ...
... deep inter-trabecular recesses (DITR), which relation with ventricular lumen and regional wall motion abnormalities [1-3]. Left VNC is myocardial disease with a genetic basis that lead to heart failure, arrhythmia, sudden death (SCD), and thromboembolism [4]. It is true that the diagnosis of this di ...
Ventricular Arrhythmias in Doberman Pinschers
... The heart has an electrical generator system, conduit, and electrical switching station, within it. When an electrical impulse is transmitted this causes the heart to beat or contract. When the ventricles of the heart are diseased, the electrical impulse that causes the heart muscle to contract is t ...
... The heart has an electrical generator system, conduit, and electrical switching station, within it. When an electrical impulse is transmitted this causes the heart to beat or contract. When the ventricles of the heart are diseased, the electrical impulse that causes the heart muscle to contract is t ...
Nessun titolo diapositiva - Casa di Cura "Città di Aprilia"
... Different morphologies of fQRS The fQRS included various RSR’ patterns with or without the Q wave and was defined by the presence of an additional R wave (R’ prime), or notching in nadir of the S wave, notching of R wave, or the presence of more than one R prime (fragmentation) in two contiguous ...
... Different morphologies of fQRS The fQRS included various RSR’ patterns with or without the Q wave and was defined by the presence of an additional R wave (R’ prime), or notching in nadir of the S wave, notching of R wave, or the presence of more than one R prime (fragmentation) in two contiguous ...
atrial fibrillation atrial flutter
... Please sign below to confirm that there are no contraindications to long term anticoagulation. Upon receiving a signed form the RAAF service will automatically forward it to the anticoagulant clinic for early appointment. Name and Signature………………………………………………………Date…………………………. Oral anticoagulation sh ...
... Please sign below to confirm that there are no contraindications to long term anticoagulation. Upon receiving a signed form the RAAF service will automatically forward it to the anticoagulant clinic for early appointment. Name and Signature………………………………………………………Date…………………………. Oral anticoagulation sh ...
Guidelines for Postoperative Care of Tetralogy of Fallot Hala Agha, MD
... Moderate amounts of residual RVOTO are often well tolerated in the early postoperative period but it is associated with development of ventricular dysrhythmias later. ...
... Moderate amounts of residual RVOTO are often well tolerated in the early postoperative period but it is associated with development of ventricular dysrhythmias later. ...
Subcutaneous Implantable Cardioverter Defibrillator (ICD) System
... population to identify complications that can occur during and after implantation of the S-ICD System. The most common complications included inappropriate shocks, discomfort, system infection, and electrode movement, which required repositioning. The FDA reported that 8 patients died during the stu ...
... population to identify complications that can occur during and after implantation of the S-ICD System. The most common complications included inappropriate shocks, discomfort, system infection, and electrode movement, which required repositioning. The FDA reported that 8 patients died during the stu ...
Ventricular arrhythmias - An
... rhythm when a P wave occurs but is not followed by a QRS. This is a more serious form of second-degree block as it occurs ...
... rhythm when a P wave occurs but is not followed by a QRS. This is a more serious form of second-degree block as it occurs ...
Arrhythmogenic right ventricular cardiomyopathy
... and transforming growth factor‑β3. So far at least nine different genetic types of ARVC have been distinguished. Fibro-fatty degeneration of RV myocardium is a reparative mechanism for necrosis and apoptosis of myocytes. The regions affected are those prone to increased hemodynamic stress (the so ca ...
... and transforming growth factor‑β3. So far at least nine different genetic types of ARVC have been distinguished. Fibro-fatty degeneration of RV myocardium is a reparative mechanism for necrosis and apoptosis of myocytes. The regions affected are those prone to increased hemodynamic stress (the so ca ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.