The difference between ECG drawings and ordinary paper

Time : 2023-07-21

An electrocardiogram is a common medical examination used to monitor and record the electrical activity of the human heart. The paper drawn for ECG is also obviously different from the ordinary paper we usually use.

This article will explore the differences between ECG drawings and plain paper to better understand the two types of paper.


Size and layout

First, ECG drawings usually have a prescribed size and layout. According to international standards, ECG drawings are generally 280 mm long and 216 mm wide. In contrast, ordinary paper is mostly A4 size, 297 mm long and 210 mm wide. In addition, the electrocardiogram drawing is divided into several small squares of equal width in the vertical direction, each small square generally represents 0.04 seconds, the horizontal direction represents time, and the vertical direction represents voltage.

Special Marks and Marks

There will also be some special marks and signs on the ECG chart. For example, there will be a guide line on the paper to help doctors and technicians align the EKG machine. In addition, relevant logos will be printed on the edge of the paper to record important parameters such as patient information, date and time. These special marks and logos can help doctors read and analyze ECG results more conveniently.

High sensitivity and water resistance

ECG charts are usually made of high-sensitivity paper in order to accurately record the tiny electrical signals of the heart. Compared with ordinary paper, electrocardiogram paper has better conduction performance on electric current, and can effectively receive and record heart electrical signals from electrocardiography equipment, making the drawing results more accurate and reliable.

ECG drawings also have good water resistance. Since conductive tape or liquid conductive agents may be used during the ECG examination, the EKG drawing needs to be able to prevent moisture penetration and diffusion. This special water resistance guarantees the stability and durability of ECG drawings.

There are significant differences between ECG drawings and plain paper in terms of size, layout, special markings and logos, and performance. The prescribed size and layout of the ECG chart make it suitable for accurate recording of the electrical activity of the heart, while special markings and markings facilitate the analysis and evaluation of the ECG results by doctors. High sensitivity and water resistance are the unique characteristics of ECG charts, which guarantee its reliability and stability in ECG examination.