The primary instrument used to perform an electrocardiogram (ECG or EKG) is called an electrocardiograph or ECG machine.
Understanding the Electrocardiograph
An electrocardiograph is a medical device that detects and records the electrical activity of the heart over a period of time. This recording, displayed as a tracing on paper or a screen, is the electrocardiogram (ECG or EKG).
- How it Works: Small sensors called electrodes are attached to the patient's chest, arms, and legs. These electrodes pick up the electrical signals generated by the heart as it beats. The electrocardiograph machine amplifies these signals and records them.
- Purpose: A standard ECG is a quick, non-invasive test commonly used to check the heart's rhythm and electrical activity, helping diagnose various heart conditions.
Specialized ECG Instruments: The Holter Monitor
While the electrocardiograph is used for a brief recording, other instruments are used for continuous monitoring. According to a provided reference:
The Holter monitor is a type of electrocardiogram (ECG or EKG) used to monitor the ECG tracing continuously for a period of 24 hours or longer. Electrodes (small, plastic patches) are placed at certain locations on the chest, arms, and legs.
This highlights that a Holter monitor is a specific type of ECG instrument designed for extended, continuous recording outside of a clinical setting.
Key Instruments Used in ECG
Here is a summary of the instruments involved:
| Instrument Name | Primary Function | Duration of Use | Reference Mentioned |
|---|---|---|---|
| Electrocardiograph | Standard, resting ECG recording | Short (few minutes) | No |
| Holter Monitor | Continuous, long-term ECG recording | 24 hours or longer | Yes |
| Electrodes | Detect electrical signals from the body | Used with both types | Yes |
In summary, while the general instrument is the electrocardiograph, specialized devices like the Holter monitor are used for specific monitoring needs, utilizing electrodes to capture the heart's electrical signals.
