1/24/2024 0 Comments Heart monitor linesThe DIRECTION of the P Wave in lead II is positive (upright).During the P Wave, the electrical impulses progress from the SA node through the intermodal atrial conduction tracts and most of the AV node.The first part of the normal sinus P Wave represents depolarization of the right atrium the second part represents depolarization of the left atrium.A normal sinus P Wave indicates that the electrical impulse responsible for the P Wave originated in the SA node and that normal depolarization of the right and left atria has occurred. A QRS complex normally follows each P Wave. The point where the wave returns to the baseline marks the end of the P Wave. Onset of the P Wave is identified as: the first abrupt or gradual deviation from the baseline. The P wave represents depolarization of the right and left atria. Listed here is a quick guide for determination of heart rate: These 3 – second time intervals are marked on the paper by darker lines as shown below. Fifteen of the 0.20 squares represent 3 seconds. Each of the small squares equal 0.4 second of time. The horizontal lines measure time intervals and heart rate. The EKG paper records time sequences (horizontal deflections) and amplitude (vertical deflections) of the electrical activity of the heart. You will be able to make fairly accurate measurements of the patient’s heart rate and other measurements by counting blocks up and down on the paper. The time intervals are shown as well as the measurements of each block on the paper. Shown in the illustration below are a sample of EKG paper and an enlargement of the markings. In order to begin to understand the interpretation of EKC’s one must have an understanding of the EKG paper. For additional information visit Linking to and Using Content from MedlinePlus.Chapter II: The Electrocardiogram and the Normal EKG Part I: The ECG Paper and the Normal ECG Tracing Any duplication or distribution of the information contained herein is strictly prohibited without authorization. Links to other sites are provided for information only - they do not constitute endorsements of those other sites. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. This site complies with the HONcode standard for trustworthy health information: verify here. Learn more about A.D.A.M.'s editorial policy editorial process and privacy policy. is among the first to achieve this important distinction for online health information and services. follows rigorous standards of quality and accountability. is accredited by URAC, for Health Content Provider (URAC's accreditation program is an independent audit to verify that A.D.A.M. You may be asked to exercise while being monitored if your symptoms have occurred in the past while you were exercising.Ī.D.A.M., Inc. It is very important that you accurately record your symptoms and activities so the provider can match them with your Holter monitor findings.Įlectrodes must be firmly attached to the chest so the machine gets an accurate recording of the heart's activity.Ĭontinue your normal activities while wearing the monitor. The provider will look at the records and see if there have been any abnormal heart rhythms.After 24 to 48 hours, you will return the monitor to your health care provider's office.Keep a diary of what activities you do while wearing the monitor, and how you feel.While you wear the monitor, it records your heart's electrical activity. You carry the Holter monitor in a pocket or pouch worn around your neck or waist. These are attached by wires to a small recording monitor. Electrodes (small conducting patches) are stuck onto your chest.
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