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Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

3.6K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
3.6K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

918
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
918
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

132
Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
132
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

5.0K
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
5.0K
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

406
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
406
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

9.1K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
9.1K

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Related Experiment Video

Updated: Oct 3, 2025

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
05:03

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Published on: December 11, 2019

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The Do-It-Yourself Electrocardiogram.

Eileen Haase1, Ryan O'Hara1, Anil Maybhate2

  • 1Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218 USA.

Biomedical Engineering Education
|February 14, 2022
PubMed
Summary
This summary is machine-generated.

Biomedical engineering students successfully built and analyzed their own electrocardiograms (EKG) at home using a Do-it-yourself (DIY) EKG kit. This project provided a fulfilling remote learning experience, demonstrating the feasibility of hands-on virtual labs.

Keywords:
ArduinoElectrocardiogramExperiential learningOnline teachingRemote learning

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Area of Science:

  • Biomedical Engineering Education
  • Biomedical Signal Processing

Background:

  • Hands-on laboratory experiences are essential for undergraduate biomedical engineering programs.
  • The COVID-19 pandemic and increasing demand for online learning necessitated innovative remote educational tools.

Purpose of the Study:

  • To develop and evaluate a Do-it-yourself Electrocardiogram (DIY EKG) project for remote undergraduate biomedical engineering education.
  • To enable students to build an Arduino-based EKG circuit, acquire their own EKG data, and analyze it using MATLAB.

Main Methods:

  • Students were provided with an Arduino-based DIY EKG kit, including circuit diagrams and step-by-step instructions.
  • Remote troubleshooting support was offered throughout the project.
  • Students utilized MATLAB for the analysis of their acquired EKG data.

Main Results:

  • 85.4% of students (n=103) successfully obtained their own EKG data remotely.
  • The provided resources included labelled circuit drawings, instructions, and MATLAB files.
  • Survey data indicated that 89% of students found the DIY EKG project to be a "challenging yet fulfilling experience".

Conclusions:

  • The DIY EKG project effectively facilitated remote hands-on learning in biomedical engineering.
  • This approach demonstrates a viable method for delivering practical laboratory experiences in an online educational setting.
  • The project successfully engaged students, fostering a positive learning outcome despite remote challenges.