Causes - EDExam
... Early difibrillation provides the best chance of survival: Time in VF pre-defibrillation % Discharged from hospital < 1 min ...
... Early difibrillation provides the best chance of survival: Time in VF pre-defibrillation % Discharged from hospital < 1 min ...
Haron Kirikiru Wk 4 discussion Atrial fibrillation They are
... The main objectives of atrial fibrillation treatment are; to slow down the heart rate; to restore and maintain normal heart rhythm; and to prevent stroke. Defibrillator is a regular treatment for life threatening cardiac arrhythmias and fibrillation; it depolarizes the myocardium, ends the arrhythmi ...
... The main objectives of atrial fibrillation treatment are; to slow down the heart rate; to restore and maintain normal heart rhythm; and to prevent stroke. Defibrillator is a regular treatment for life threatening cardiac arrhythmias and fibrillation; it depolarizes the myocardium, ends the arrhythmi ...
Pre-Lecture Quiz
... 2. Cardiomyopathies involve mechanical rather than electrical etiologies of heart dysfunction. ...
... 2. Cardiomyopathies involve mechanical rather than electrical etiologies of heart dysfunction. ...
Cardiac, STEMI, and 12-Lead Review
... •Lead II: The postive lead is on the left abdomen or left thigh and the negative lead is also on the right arm. Records the difference of potential between the left leg and the right arm. •Lead III: The postive lead is also on the left abdomen or left lower lateral leg but the negative lead is on th ...
... •Lead II: The postive lead is on the left abdomen or left thigh and the negative lead is also on the right arm. Records the difference of potential between the left leg and the right arm. •Lead III: The postive lead is also on the left abdomen or left lower lateral leg but the negative lead is on th ...
1_case report1
... However, group of patients may progress into permanent LBBB and very rarely into atrioventricular block with the consequent need for permanent pacemaker implantation.10 In summary we report an unusual case of a highly trained athlete who presented with chest pain and conduction abnormalities on ECG. ...
... However, group of patients may progress into permanent LBBB and very rarely into atrioventricular block with the consequent need for permanent pacemaker implantation.10 In summary we report an unusual case of a highly trained athlete who presented with chest pain and conduction abnormalities on ECG. ...
Arrhythmias: Hyperfunction
... EKG leads Best- lead II and MCL or V1 leads- lead II easy to see Pwaves. MCL or V1 easy to see ventricular rhythms. ...
... EKG leads Best- lead II and MCL or V1 leads- lead II easy to see Pwaves. MCL or V1 easy to see ventricular rhythms. ...
05_Instrumental methods of examination of cardiovascular system
... or coronary heart disease, cor pulmonale, or atrial septal defect or as a result of quinidine effect on atrial fibrillation. Ectopic impulse formation occurs at rates of 250-350, with transmission of every second, third, or fourth impulse through the atrioventricular node to the ventricles. The vent ...
... or coronary heart disease, cor pulmonale, or atrial septal defect or as a result of quinidine effect on atrial fibrillation. Ectopic impulse formation occurs at rates of 250-350, with transmission of every second, third, or fourth impulse through the atrioventricular node to the ventricles. The vent ...
Document
... 3. The height of the wave – related to the mass of the muscle generating the wave - the ventricles have more mass than the atria: P wave is smaller than QRS complex - large ventricles (ventricular hypertrophy) more muscle creating a stronger signal when the ventricles contract: taller QRS complex ...
... 3. The height of the wave – related to the mass of the muscle generating the wave - the ventricles have more mass than the atria: P wave is smaller than QRS complex - large ventricles (ventricular hypertrophy) more muscle creating a stronger signal when the ventricles contract: taller QRS complex ...
Heart Function: How do we correlate the cardiac cycle to sounds
... upon where your positive and negative electrodes were placed on your body. Example: You could have an ECG with just a P and R wave and no observable Q-, S- or T-waves. It is only a matter of how the heart is oriented across the two electrodes of interest. ...
... upon where your positive and negative electrodes were placed on your body. Example: You could have an ECG with just a P and R wave and no observable Q-, S- or T-waves. It is only a matter of how the heart is oriented across the two electrodes of interest. ...
PPT
... Axis and Vectors: Lead I • Green lines indicate axes of the heart • The corresponding black lines represent the average vector for that axis in relation to lead I (red line). • Larger vector, larger the deflection on an EKG • Vectors A and B = negative deflections on lead I – This means the vector ...
... Axis and Vectors: Lead I • Green lines indicate axes of the heart • The corresponding black lines represent the average vector for that axis in relation to lead I (red line). • Larger vector, larger the deflection on an EKG • Vectors A and B = negative deflections on lead I – This means the vector ...
Acute management of myocardial infarction
... • ECG shows ST depression and T wave inversion in V2- V6. • What do you want to do next? ...
... • ECG shows ST depression and T wave inversion in V2- V6. • What do you want to do next? ...
Methodical instructions (indication)
... Voltages measured by the three limb leads are proportional to the projections of the electric heart vector on the sides of the lead vector triangle ...
... Voltages measured by the three limb leads are proportional to the projections of the electric heart vector on the sides of the lead vector triangle ...
A Systematic Approach to the 12 Lead EKG
... – LAE- terminal negative portion of the P wave in V1 >/= 1 mm deep and 40 msec wide and notched P wave with a duration >/= 120msec in II, III, aVF (p-mitrale) ...
... – LAE- terminal negative portion of the P wave in V1 >/= 1 mm deep and 40 msec wide and notched P wave with a duration >/= 120msec in II, III, aVF (p-mitrale) ...
Ventricular Tachycardias
... The ECG typically shows right axis deviation, with a left bundle branch block pattern. The tachycardia may be provoked by catecholamine release, sudden changes in heart rate, and exercise. It usually responds to drugs such as alpha-blockers or calcium antagonists. ...
... The ECG typically shows right axis deviation, with a left bundle branch block pattern. The tachycardia may be provoked by catecholamine release, sudden changes in heart rate, and exercise. It usually responds to drugs such as alpha-blockers or calcium antagonists. ...
Exam - Test Bank Team
... 3) When a P wave originates in the SA node, it is expected to be smooth, rounded, and ________ in Lead II. A) inverted B) biphasic C) notched D) upright ...
... 3) When a P wave originates in the SA node, it is expected to be smooth, rounded, and ________ in Lead II. A) inverted B) biphasic C) notched D) upright ...
ysrhythmia-Cheatsheet
... Rhythm Basics (You will not do well on the test if you do not know ALL of this material) Rhythm ...
... Rhythm Basics (You will not do well on the test if you do not know ALL of this material) Rhythm ...
PATIENT INFORMATION SHEET Holter (24hr) ECG recording Why
... control of the heart rate in those with atrial fibrillation during daily life. We sometimes look for silent angina (ischaemia) using the Holter recorder which is not a heart rhythm problem but one which shows on the ECG by changes in what is called the ‘ST-segment’. ...
... control of the heart rate in those with atrial fibrillation during daily life. We sometimes look for silent angina (ischaemia) using the Holter recorder which is not a heart rhythm problem but one which shows on the ECG by changes in what is called the ‘ST-segment’. ...
Review
... syndrome refers to the association of several clinically recognizable features, signs (observed by a physician), symptoms (reported by the patient), phenomena or characteristics that often occur together, so that the presence of one feature alerts the physician to the presence of the others. ...
... syndrome refers to the association of several clinically recognizable features, signs (observed by a physician), symptoms (reported by the patient), phenomena or characteristics that often occur together, so that the presence of one feature alerts the physician to the presence of the others. ...
ECGs and arrhythmia identification
... membrane potential is the voltage that exists across the cell membrane when the cell is at rest. For normal “working” ventricular cells, this equates to an overall negative charge (inside the cell relative to outside the cell) of -90mV. Two transport mechanisms are responsible for maintaining the re ...
... membrane potential is the voltage that exists across the cell membrane when the cell is at rest. For normal “working” ventricular cells, this equates to an overall negative charge (inside the cell relative to outside the cell) of -90mV. Two transport mechanisms are responsible for maintaining the re ...
Circulatory System Questions
... 1. What are the names of all four heart valves? 2. Why do both veins and the heart need 1-way valves? What function do they have in common? What is different about their function? 3. What are some differences between veins and arteries? Also why are they different? 4. Name 4 structures that are part ...
... 1. What are the names of all four heart valves? 2. Why do both veins and the heart need 1-way valves? What function do they have in common? What is different about their function? 3. What are some differences between veins and arteries? Also why are they different? 4. Name 4 structures that are part ...
OneStep Pacing
... The R Series® defibrillator works with ZOLL’s exclusive OneStep pacing system. The OneStep Pacing and OneStep Complete electrodes eliminate the need for a separate ECG cable by incorporating ECG electrodes into the anterior electrode. The triangular-shaped anterior electrode (Figure 1) incorporates ...
... The R Series® defibrillator works with ZOLL’s exclusive OneStep pacing system. The OneStep Pacing and OneStep Complete electrodes eliminate the need for a separate ECG cable by incorporating ECG electrodes into the anterior electrode. The triangular-shaped anterior electrode (Figure 1) incorporates ...
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.