• 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
NYHA Classification I no limitations, no symptoms with ordinary
NYHA Classification I no limitations, no symptoms with ordinary

... Valvular disease Dilated cardiomyopathy Hypertrophic cardiomyopathy Pulmonary disease Alcohol Chemotherapy Tachycardiomyopathy etc ...
An Implementation of a Heart Beat Detector Using 8051
An Implementation of a Heart Beat Detector Using 8051

... The condition of the human heart is a key issue in the life of every individual that is living. The heartbeat of the heart should be normally maintained to ensure that the human heart works effectively and keep the individual alive. To achieve these, a heartbeat monitor which is simply a device that ...
Cardiac Auscultation
Cardiac Auscultation

... according to the sequence of occurrence and are produced at specific points in the cardiac cycle. The initial heart sound is called the first heart sound or S1. It occurs at the beginning of ventricular systole when the ventricular volume is maximal. The S1 corresponds to a point very early in the r ...
Hibernating myocardium
Hibernating myocardium

... • Cardiac output that is insufficient to meet the needs of the body ...
QUIZ # 1 - Cognella Titles Store
QUIZ # 1 - Cognella Titles Store

... and is traveling through the bundle branches and the Purkinje fibers as the ventricles contract. It is important for you to know how long it is taking for the ventricles to contract. If it is taking longer than “normal,” maybe there is a blockage of some type within the bundle branches or Purkinje f ...
Medtronic Unveils Data Showing Feasibility of New
Medtronic Unveils Data Showing Feasibility of New

... sites in the U.S. and Canada, and preliminary data demonstrated that pacing is possible from this extravascular space, with the majority of patients achieving consistent and appropriate ventricular pacing results. These clinical data were further supported by other pre-clinical abstracts presented d ...
Electrocardiographic interpretation in athletes: the
Electrocardiographic interpretation in athletes: the

... Sudden cardiac death (SCD) is the leading cause of death in athletes during sport. Whether obtained for screening or diagnostic purposes, an ECG increases the ability to detect underlying cardiovascular conditions that may increase the risk for SCD. In most countries, there is a shortage of physicia ...
Gothe / Drinnenberg Homeopathic Clinical Pictures
Gothe / Drinnenberg Homeopathic Clinical Pictures

... coronaries which last either only for a short while (angina pectoris), or, where the entire vessel is blocked (heart attack), last longer and may be fatal. In most cases (patients suffering from diabetes, women, or elderly patients often constitute an exception), these circulatory disturbances are a ...
Cardiac Cycle and Heart Sounds
Cardiac Cycle and Heart Sounds

... blood that enters it • The critical factor controlling stroke volume is how much the cardiac muscle cells are stretched just before they contract: the more they are stretched, the stronger the contraction will be • The important factor stretching the heart muscle is venous return, the amount of bloo ...
Isla`s Presentation
Isla`s Presentation

... period. An arrhythmia may proceed the development of ventricular fibrillation (VF) or asystole or may develop after successful defibrillation. Arrhythmias are common in the setting of acute myocardial infarction (Heart Attack, that can often lead to cardiac arrest). ...
ECG Analysis (Fundamentals) - American Academy of Family
ECG Analysis (Fundamentals) - American Academy of Family

... The material presented here is being made available by the American Academy of Family Physicians for educational purposes only. This material is not intended to represent the only, nor necessarily best, methods or procedures appropriate for the medical situations discussed. Rather, it is intended to ...
Cardiovascular Division Overview Presentation
Cardiovascular Division Overview Presentation

... Longer-term support from serious disease or injury. The potential for many hearts to recover, allowing device removal. A new market segment. ...
LUHS Handbook Approval
LUHS Handbook Approval

... day the regimen you prescribe needs to be taken (e.g., Hydralazine TID). When possible, look into switching to fixed dose combinations as there is some data to suggest that compliance improves with these formulations. Otherwise the non-compliance rate is generally ...
Evaluation of a New Shirt-Based Electrocardiogram Device for
Evaluation of a New Shirt-Based Electrocardiogram Device for

... has emerged as a key target of sports medicine. Screening protocol for cardiovascular abnormalities proposed by current guidelines [1, 2] consists at least of complete medical history, physical examination and resting 12-lead electrocardiogram (ECG). This screening strategy has provided solid eviden ...
Example of a Complete History and Physical Write-up
Example of a Complete History and Physical Write-up

... was previously well controlled on diuretic therapy. She was first admitted to CPMC in 1995 when she presented with a complaint of intermittent midsternal chest pain. Her electrocardiogram at that time showed first degree atrioventricular block, and a chest X-ray showed mild pulmonary congestion, wit ...
Sudden Cardiac Death
Sudden Cardiac Death

... Previous heart attack with a large area of the heart damaged (75% of SCD cases are linked to a previous heart attack). A person's risk of SCD is higher during the first 6 months after a heart attack. Coronary artery disease (80% of SCD cases are linked with this disease). Risk factors for coronary a ...
Sinus Rhythms - Beaumont Emergency Medicine
Sinus Rhythms - Beaumont Emergency Medicine

...  Greater than 48 hours duration  Rate control with diltiazem, beta blockers or digitalis  Do not attempt cardioversion unless emergently indicated  Anticoagulation and arrangement for echo ...
The Electrocardiogram
The Electrocardiogram

... The heart moves freely and can change its stroke volume (SV) and twist to eject blood friction free. Pericardium Surrounds: • Heart • Great vessels ...
File
File

Materials and Methods
Materials and Methods

... inferior AMI who had been admitted to the coronary care unit. The clinical and electrocardiographic characteristics, as well as the morbidities and in-hospital mortalities, of groups of patients with and without heart failure during inferior AMI were compared. Results: Symptoms and signs of heart fa ...
An Investigation of Cardiac Dynamics and Substrate Metabolism in
An Investigation of Cardiac Dynamics and Substrate Metabolism in

... In HF we see a change in substrate preference from fatty acids to carbohydrate % Substrate Utilization ...
Background
Background

... 20 mg i.v. and aldactone 200mg i.v. He did not cooperated during hospitalization. After heparin treatment reduction of additional echo in the tunnel was observed. Disscusion Comprehensive assessment is mandatory for patients with manifestations of the ‘failing Fontan’ complex, with particular care t ...
NUR202-ModuleB
NUR202-ModuleB

... ABNORMALLY SHAPED P WAVE QRS COMPLEX NOT AFFECTED ...
Premature Ventricular Contraction
Premature Ventricular Contraction

... • Premature contractions (“ectopics”) are classified by their origin — atrial (PACs), junctional (PJCs) or ventricular (PVCs). ...
Powerpoint - Circulation: Arrhythmia and Electrophysiology
Powerpoint - Circulation: Arrhythmia and Electrophysiology

< 1 ... 663 664 665 666 667 668 669 670 671 ... 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