1 year ago

What is an Electrocardiogram (EKG)? This video covers the medical definition of an ECG and provides an overview of this topic.
💥EKG Interpretation [Full Guide] ➜ ➜ ➜ https://bit.ly/3g2jLSO

An EKG is a test that measures the electrical activity of the heart. It’s a noninvasive test, which means that it does not involve any needles or injections. The electrical activity of the heart is produced by the coordinated contraction of the heart’s four chambers.

➡️ How is an EKG Measured?
The electrical activity produced by the heart’s contractions can be detected by electrodes that are placed on the patient’s skin. These electrodes are connected to an EKG machine, which records the electrical activity and produces a graph that can be interpreted by medical professionals.

➡️ Electrophysiology of the Heart
The electrophysiology of the heart refers to how signals and electrical impulses are conducted within the heart. There are a number of different parts of the heart that are involved in this process, including the sinoatrial (SA) node, atrioventricular (AV) node, and Purkinje fibers. The sinoatrial node, also known as the pacemaker, is responsible for setting the heart’s rhythm. The wave of depolarization that originates from the SA node is responsible for causing the atria to contract. This is known as a P wave on an EKG reading. The impulse is then received by the AV node, which causes a short delay. This delay is interpreted as a PR interval on an EKG tracing. Then the stimulus moves through the bundle of His, through the left and right bundle branches, and into the Purkinje fibers. This produces ventricular depolarization, and contraction occurs, which can be seen as the QRS complex. Then the heart enters into a short period of repolarization, which is a period where no electrical activity can be detected. This is known as the ST segment on an EKG tracing. Finally, the heart enters into a period of recovery where the SA node is recharged, and another cycle can begin.

➡️ Components of an EKG:
1. Electrodes
2. Leads

➡️ Electrodes
Electrodes are small, metal discs that are placed on the patient’s skin. They are responsible for detecting the electrical activity of the heart and transmitting it to the EKG machine.

➡️ Leads
Leads represent the electrical activity of the heart from a specific angle. There are six different leads in an EKG reading, which are referred to by the letters I, II, III, aVR, aVL, and aVF.

➡️ EKG Chest Electrodes
There are six standard electrodes that must be attached to a patient’s chest during an EKG in order to obtain a reading. This includes the following:
V1 – 4th intercostal space on the right side of the sternum
V2 – 4th intercostal space on the left side of the sternum
V3 – Between V2 and V4 on the left side
V4 – 5th intercostal space on the left mid-clavicular line
V5 – Between V4 and V6 on the left side
V6 – 5th intercostal space on the mid-axillary line

💥EKG Interpretation [Full Guide] ➜ ➜ ➜ https://bit.ly/3g2jLSO

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🚑MEDICAL DISCLAIMER
This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time.

💡AFFILIATE DISCLAIMER
This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you.

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⏰TIMESTAMPS
0:00 - Intro
0:32 - EKG
1:07 - How is an EKG Measured?
1:28 - Electrophysiology of the Heart
1:48 - Sinoatrial Node
2:56 - Components of an EKG
3:02 - Electrodes
3:13 - Leads
3:33 - EKG Chest Electrodes

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🖼CREDIT FOR MUSIC AND GRAPHICS:
▪ Music licensed from Audiojungle.net/
▪ Graphics: Canva.com, Freevector.com, Vecteezy.com, and Pngtree.com

#EKG #ECG #Electrocardiogram

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