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Rhythm & 12 Lead EKG Review
Rhythm & 12 Lead EKG Review

... • Delay or interruption in impulse conduction in AV node, bundle of His, or His/Purkinje system • Classified according to degree of block and site of block – PR interval is key in determining type of AV block – Width of QRS determines site of block ...
Electrocardiogram (EKG, ECG) Lab
Electrocardiogram (EKG, ECG) Lab

... indicates the electrical impulse was blocked before it reached the ventricles. Abnormally shaped complexes result from abnormal spread of the impulse through the muscle tissue, such as in myocardial infarction where the impulse cannot follow its normal pathway because of tissue death or injury. Elec ...
Restrictive Cardiomyopathy (RCM)
Restrictive Cardiomyopathy (RCM)

... All first degree relatives of an individual who has RCM should undergo routine cardiac evaluation. This includes parents, brothers, sisters and children. If a gene mutation causing RCM in an individual is known, cardiac screening is recommended for those family members proven to also carry the gene ...
Technical Editing
Technical Editing

... By Donald L. Bricker, M.D. This question is often asked perhaps more of patients who have experienced “open heart surgery” than of physicians. It is even posed in an argumentative fashion in some circumstances, and the author has been called more than once to arbitrate as to whether a given surgical ...
Civic/Riverside Units - S. McCarter, September 2015
Civic/Riverside Units - S. McCarter, September 2015

... – Mobitz II: PR interval stable with occasional dropped QRS  High risk of syncope or CHB  Requires temp pacing/ permanent pacemaker Etiology: high vagal tone, age related, infectious, infarct, drugs, electrolyte abN, post-cardiac surgery ...
Gross Anatomy of the Heart
Gross Anatomy of the Heart

... – Myoglobin stores O2, glycogen stores glucose – Extra large mitochondria [25% of cell] ...
Chapter12_Detailed_Answers
Chapter12_Detailed_Answers

... QRS complex, it deviates in appearance from the normal P wave and is typically buried in the T wave of the preceding beat. If present, the P' waves may be flattened or notched. The P’R intervals are typically indeterminable because the P’ waves tend to be buried. If visible, the P’R interval is ofte ...
Update in Heart Failure
Update in Heart Failure

... – Moderate to severe CHF who have failed optimal medical therapy – EF<30% – Evidence of electrical conduction delay ...
Circulatory System
Circulatory System

... • Heart is two pumps that work together, right and left half • Repetitive contraction (systole) and relaxation (diastole) of heart chambers • Blood moves through circulatory system from areas of higher to lower pressure. – Contraction of heart produces the pressure ...
17 Physiological properties of heart.Pump work of theheary
17 Physiological properties of heart.Pump work of theheary

... • They generate an action potential at the rate of about 70 per minute. • From the sinus node, activation propagates throughout the atria, but can not propagate directly across the boundary between atria and ventricles. ...
Cardiac Biomarkers
Cardiac Biomarkers

... disease. Therefore, Tabor’s veterinarian was confident that an echocardiogram was indicated to evaluate the etiology of Tabor’s cardiac disease. Several recent studies have shown that concentrations of NTproBNP differ between healthy control cats, asymptomatic cats with heart disease and cats with c ...
Nursing Quiz Sample - Jennifer A. Norman
Nursing Quiz Sample - Jennifer A. Norman

... symptomatic heart failure. Diuretics, digoxin, and aldosterone antagonists may be added to angiotensinconverting enzyme (ACE) inhibitors and beta-blockers, depending on the severity of symptoms. Cardiac resynchronization therapy also may be considered. Stage D includes patients with severe refractor ...
Waves and Measurements
Waves and Measurements

... • Anything less than .12 seconds. • This would mean that the ventricles took a normal amount of time to depolarize if they did it in less than .12 seconds. ...
skeletal muscle
skeletal muscle

... – Blood isn’t pumped out completely. – Blood may pool and form clots which could lodge in the brain and produce a stroke. ...
35 jmscr
35 jmscr

... CCTGA, is a rare (less than 1% of all CHD) and complex heart defect [5]. It is characterized by AV and ventriculoatrial discordance. The aorta is located closer to the anterior and more to the left than the pulmonary artery. The AV valves follow their respective ventricles. Because of the displaceme ...
Heart Failure
Heart Failure

... Hypovolaemia (postural decrease of more than 20 mmHg) ...
SALADIN CHAPTER 19 Cardiovascular System/Heart
SALADIN CHAPTER 19 Cardiovascular System/Heart

... • Normal pattern triggered by SA node = sinus rhythm [70-80/min] • Outside stimuli can cause firing from ectopic focus – usually AV node ...
BI 232 Laboratory Circulatory System: Cardiac Anatomy
BI 232 Laboratory Circulatory System: Cardiac Anatomy

... − Stress, anxiety, drugs, heart disease or ↑body temp. − In small children may be considered normal. • Bradycardia − Persistent, resting adult HR < 60. − Common in sleep and endurance trained athletes (↑ SV). ...
Paroxysmal supraventricular tachycardia: physiopathology and
Paroxysmal supraventricular tachycardia: physiopathology and

... The natural history of PSVT presenting in the neonate suggests that spontaneous resolution usually occurs in the first year of life [9]. For infants born with a history of fetal PSVT, doctors choose to give maintenance antiarrhythmic therapy postnatally to 52-63% of non-hydropic fetuses and to about ...
3.1_Cardiac_Physiology_
3.1_Cardiac_Physiology_

... 2. Autorhythmic cells (1%) release electrical impulses to maintain the rhythm of heart contractions. These are scattered throughout the myocardium and function more like nerve cells than muscle. Automatic intrinsic rate of depolarization - these cells automatically depolarize at regular intervals, s ...
Diseases and hygiene of the cardiovascular system
Diseases and hygiene of the cardiovascular system

... Congenital heart disease is a type of defect in one or more structures of the heart or blood vessels that occur before birth. It affects about 8 out of every 1,000 children. Congenital heart defects may produce symptoms at birth, during childhood and sometimes not until adulthood. In most cases scie ...
Cardiology Conference
Cardiology Conference

... Late presentation: Patients often present after the neonatal period with hypertension or a murmur Other presenting symptoms may include headaches, chest pain, fatigue, or even lifethreatening intracranial hemorrhage. Many patients are asymptomatic except for the incidentally noted hypertension. As w ...
What is Atrial Fibrillation?
What is Atrial Fibrillation?

... body including your brain and cause a stroke. The bottom chambers of the heart, the ventricles, may try to keep up with the atrium and beat at a faster rate than normal. If the heart continues to race for a long period of time the heart muscle becomes worn out and may begin to fail. How common is At ...
Stress-Driven Anisotropic Diffusion in Active Deformable Media
Stress-Driven Anisotropic Diffusion in Active Deformable Media

... Excitable media represent complex nonlinear electrochemical systems naturally coupled to several multiphysical factors. A remarkable example is the heart, which exhibits the propagation of nonlinear bioelectrical waves on a complex anatomical background undergoing large mechanical deformations [1]. ...
CirculatorySystem
CirculatorySystem

... Desmosomes hold cells together and gap junctions allow action potentials Electrically, cardiac muscle behaves as single unit ...
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Heart arrhythmia

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