• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Yew can be really poisonous to You
Yew can be really poisonous to You

... interrogation of the parents resulted in the discovery of taxus leaves and tea under the bed of the girl. Decontamination by gastroscopy 6 hours after the ingestion with the removal of many taxus leaves. One week after this suicidal ingestion the patient was stable and psychiatric treatment could be ...
cardiothoracic procedures
cardiothoracic procedures

... • OCCUPATION • HEART FUNCTION & RHYTHM • VALVE SIZE & # NEEDED ...
Neural Control of Ventricular Rate in Ambulatory Dogs with Pacing
Neural Control of Ventricular Rate in Ambulatory Dogs with Pacing

... More common without heart disease ...
Transcript of video
Transcript of video

... diagnosis heart failure. We also help them manage their condition in the community. We offer up titration of their medications, and we monitor that. We also prevent unnecessary hospital admissions for deterioration in the patient’s condition. So, if the patient decompensates in their heart failure, ...
Cardiac Failure
Cardiac Failure

... beneath the skin or in one or more cavities of the body that produces swelling. ...
Neurogenic and Myogenic hearts
Neurogenic and Myogenic hearts

... temperature, chemical or electrical stimuli, it affects cardiac activity, thus the wave of heart action starts from this point. • The wave is picked up by A.V. node situated in right atrium near AV septum and then spreads into ventricle through the branches of auricular- ventricular bundles which fo ...
Document
Document

... closure of AV valves during contraction of the ventricles  Second (dupp) sound is caused by the closure of ...
Word Version - Andorra Pediatrics
Word Version - Andorra Pediatrics

... pumping blood. The right ventricle pumps blood to the lungs and the left ventricle pumps blood throughout the body. If there is an opening in the septum that separates the two ventricles, blood from the left ventricle can enter the right ventricle. This blood recycles through the lungs before return ...
ECE 4552: Medical Electronics Fall 2013
ECE 4552: Medical Electronics Fall 2013

Basic Cardiovascular System and Pathological Abnormalities
Basic Cardiovascular System and Pathological Abnormalities

... • Two sources of PBF:  One with fixed obstruction and the other is uncontrolled • If BT shunt present:  Limit O2  O2 saturations should not drop as far nor as quickly ...
exercise stress testing - Queensland Cardiovascular Group
exercise stress testing - Queensland Cardiovascular Group

... Some cardiac problems can only be diagnosed when the heart is placed under some form of stress. The exercise stress test is a walking treadmill test primarily performed to aid in the diagnosis of coronary artery disease, though can also assist in the investigation of cardiac arrhythmias. ...
The QT interval on the ECG is measured from the beginning of the
The QT interval on the ECG is measured from the beginning of the

... The QT interval on the electrocardiogram (ECG) represents the activation and recovery durations of ventricular myocardium. [Remark 1] This interval is measured from the beginning of the QRS complex to the end of the T wave. The QT interval corrected for heart rate (QTc) is calculated using the Bazet ...
Heart Outline - McCreary County Schools
Heart Outline - McCreary County Schools

... Normal adult rate is between 72 and 80 beats per minute Stroke volume Calculating the ______________ output Exercise increases cardiac output Heart Sounds Valves make sounds when they close Called lubb dupp ______________ Lubb Tricuspid and bicuspid valves (S1) Dupp Aortic and pulmonary valves (S2) ...
Circulatory System ppt Notes
Circulatory System ppt Notes

... specialized cardiac muscle cells that carry impulses throughout the heart musculature, signaling the chambers to contract in the proper sequence ...
the quiz questions and answers as a Microsoft Word
the quiz questions and answers as a Microsoft Word

... B. Carry blood from the tissues back to the heart C. Allow for exchange of gases, nutrients, and waste products D. Carry oxygenated blood from the lungs to the left heart to be pumped out into the systemic circulation 8. Describe the activity of the arteries. A. Carry blood away from the heart and t ...
Grade 5: Lesson PLan 1 - Texas Heart Institute
Grade 5: Lesson PLan 1 - Texas Heart Institute

... the ventricle, it is stopped briefly by the atrioventricular (AV) node. This brief stop in the electrical impulse gives the ventricle a moment to fill before contracting. The AV node determines when the ventricle needs to contract. As the impulse travels from the AV node through the wall of the vent ...
Ch 18 Cardiac Physiology
Ch 18 Cardiac Physiology

... sino-atrial node ...
Exercise 33 ECG_PulseWave
Exercise 33 ECG_PulseWave

... flows in a continuous manner. Between contractions, when the heart is relaxed and blood is not being pumped into the arterial system, there is still enough pressure in the arterial system to move blood along the arteries. The pressure in the arterial system exists because the elasticity of the arter ...
Cardiovascular System
Cardiovascular System

... • SA node-pacemaker (nerve tissue that sends impulse) – Posterior right atrium – Creates impulse for heart beat – Sends impulse 70-80 times per minute ...
A Breijo Pattern Associated to a Wolff-Parkinson-White
A Breijo Pattern Associated to a Wolff-Parkinson-White

... is a bundle of tissue which can be found either between the left atrium and the left ventricle, whose case is called type A preexcitation, or between the right atrium and the right ventricle, in whose case is called type B. The preexcitation troubles arise when this pathway creates an electrical cir ...
Cardiac Knowledge Notes - Rainier Health Network
Cardiac Knowledge Notes - Rainier Health Network

... is usually related to a problem in the electrical conduction system. Normal function within the electrical conduction system is necessary for the patient to adequately meet the metabolic demands of the body (through cardiovascular circulation of nutrients and oxygen), when the conduction system is d ...
LAB LECTURE REVIEW - Sinoe Medical Association
LAB LECTURE REVIEW - Sinoe Medical Association

... a loose electrode. Which electrode is most likely malfunctioning? ...
Investigation of heart murmurs in cats in CP care
Investigation of heart murmurs in cats in CP care

A Contemporary Approach to Lead Management
A Contemporary Approach to Lead Management

... (7.9%), or endocarditis and renal insufficiency** ...
- Via Medica Journals
- Via Medica Journals

... cord blood transplantation for chronic postinfarction heart failure: A 6-year follow-up study ” by Li-zhu, et al., to be submitted as a research article to CARDIOLOGY JOURNAL for consideration of publication. The manuscript was modified according to the suggestion of the reviewer point to point. Thi ...
< 1 ... 628 629 630 631 632 633 634 635 636 ... 762 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report