Printable ekg rhythms

Printable Ekg Rhythms. Printable Ekg Rhythms - Web electrical heart sensor and ecg app 1. Use the buttons below to learn more. Web download for free at: Web if there is a p wave before each qrs and the p is in the same direction as the qrs, the rhythm can be said to be sinus. Ecg practice drills for improving your ecg reading skills.

A low voltage electrocardiogram result can be caused by a problem in the heart’s ability to generate electricity or can be due to the presence of fluid or air in the chest between ...Ventricular fibrillation (VF) is the most important shockable cardiac arrest rhythm. It is invariably fatal unless advanced life support is rapidly instituted. ECG findings in Ventricular Fibrillation (VF) Chaotic irregular deflections of varying amplitude. No identifiable P waves, QRS complexes, or T waves.Sources. Heart Sounds and Murmurs Across the Lifespan (with CD) by Dr Barbara Ann Erickson. Publisher: Mosby. ISBN-10: 0323020453; ISBN-13: 978-0323020459. Heart Sounds and Murmurs: A Practical Guide with Audio CD-ROM 3rd Edition. Elsevier-Health Sciences Division. Barbara A. Erickson, PhD, RN, CCRN. Heart and Lung Sounds Reference Guide ...Severe sinus bradycardia alternating with tachycardia. Often a-fib. Lethargy, weakness, light-headedness, dizziness, syncope. Wolff-Parkinson-White. Short PR interval of less than 0.12 seconds. Prolongation of the QRS interval greater than 0.12 seconds. Delta wave- slurred upstroke of the QRS complex, this is a hallmark!!!Rhythm 16.Normal Sinus Rhythm 17.Normal Sinus Rhythm 18.PACs 19.PACs 20.PJCs 21.PVC 22.PVC 23.PVC 24.R-on-T phenomenon EKG QUIZ Study online at. 25. ... Print › EKG ...

The ECG rhythm strips display lead II as the top waveform and lead V1 as the bottom waveform. Classic examples are shown for each rhythm to provide basic visualization and avoid complexities. The intended use of this poster is to complement a text and /or course - in addition to a reference guide for arrhythmia recognition.How to Share Your ECG with Your Doctor. To view an ECG and share it with your doctor, open the "Health" app on your iPhone and go to "Browse" > "Heart" > "Electrocardiograms (ECG)." You'll see your three most recent ECG recordings. To view older ones, scroll down and tap "All Data." You can also view them by the different results categories.ECG Highlights | Features Of Common Rhythm Strips. This is a quick review of common ECG rhythm strips that points out key features. Knowing what to look for will help you when you see that abnormal ECG. If you are on the fence when it comes to mastering basic ECG strips like these and advancing to more complicated rhythms.Cardiologist Basic EKG ECG Rhythms Poster Cardiologist Poster Decor Home Wall Art Decor Digital Prints Basic Ekg/Ecg 11 Rhythms Rdesstudious 4.5 out of 5 stars. Arrives soon! Get it by Apr 29-May 4 if you order today. Apr 29-May 4 ... - Printable Files/ Print it yourselfGuide. onFire. From: Download for free at: NurseOnFire.com. Basic EKG/ECG Rhythms. Rhythm Names. 6 Second Rhythm Strip. Identifiers. S. H. O. V-Fib (VF) Ventricular …

EKG Interpretation Cheat Sheet: Pacemakers. Welcome to our guide for EKGs. Select one of the EKG types below to review that EKG's features and a sample strip. We have over 35 different types of EKGs in our web app. Atrial. Conduction. Junction. Pacemaker. Sinus.LITFL Further Reading. ECG Library Basics - Waves, Intervals, Segments and Clinical Interpretation. ECG A to Z by diagnosis - ECG interpretation in clinical context. ECG Exigency and Cardiovascular Curveball - ECG Clinical Cases. 100 ECG Quiz - Self-assessment tool for examination practice.Our EKG interpretation cheat sheet covers a wide range of information that will be useful to healthcare professionals and students alike. First, we show accurate examples of many of the most common ECG patterns including: Atrial Fibrillation. Atrial Flutter. Ventricular Fibrillation. Sinus Tachycardia. Ventricular Tachycardia.200 Stunning Serif Fonts Bundle. View & Download. Available For: Browse 5,456 incredible Ekg vectors, icons, clipart graphics, and backgrounds for royalty-free download from the creative contributors at Vecteezy!

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QT interval: starts at the beginning of the QRS complex and ends at the end of the t-wave. Should measure: 0.35-0.44 seconds. Analyze this Rhythm: Use the questions above to guide you in analyzing this rhythm: P-wave: Regularity: regular. Rate: 80 bpm. Resemblance: yes (p wave measurement: 0.10 seconds) QRS complex:Analysis of Rhythm!Prolongation over 0.2 seconds suggests a delay in the conduction system between the SA node and the AV node indicating a first degree heart block. When it takes two or three P-waves to initiate a QRS complex this is termed a 2:1 or 3:1 type second degree heart block. When the P-R interval becomes progressively longerLearning Resources. We provide short courses, interactive interpretation coaching and a quick reference guide to help improve your EKG interpretation skills. Use …Doctors and EMTs can use this red EKG paper to monitor vital signs. Each grid has 25 squares that are 5mm each. Download For Free (PDF format) My safe download promise. Downloads are subject to this site's term of use. Downloaded > 9,500 times. This paper belongs to these categories: specialty.

10 Steps to Learn ECG Interpretation | Learn the Heart - HealioRhythm: regular. Rate: 40-60 bpm usually (may be slower) P waves: normal in configuration; precede each QRS. PR: normal (0.12-0.20 sec) QRS: normal (< 0.12 sec) Sinus Arrhythmia. Rhythm: irregular. Rate: 60-100 bpm usually but is fairly common w/ sinus bradycardia. P waves: normal in configuration; precede each QRS.When the ventricles are generating the pacemaking signals, they can be observed on ECG tracings as ventricular rhythms. In some locations ventricular rhythms are called vent rhythms or v rhythms. There are several type of ventricular rhythms: Accelerated Idioventricular Rhythm. Asystole. Idioventricular Rhythm.Atrial Fibrillation Rhythm Strip Features. Rate: Very fast (> 350 bpm) for Atrial, but ventricular rate may be slow, normal or fast. Rhythm: Irregular. P Wave: Absent - erratic waves are present. PR Interval: Absent. QRS: Normal but may be widened if there are conduction delays. Not all fibrillatory waves are created equal.The basics of interpreting an ECG The interpretation of any ECG should start by confirming the patient's identity, time and date of the ECG, and whether the patient experienced any chest pain when the ECG was taken. This should be followed by checking the calibration of the ECG. The standard speed setting is 25mm/second. ThisPrintable Ekg Cheat Sheet. Our free cheat sheet will make recognizing the difference second nature. Web personal quick reference sheets from: Rhythm ‐ regular rate ‐ (60‐100 bpm) qrs duration ‐ normal p wave ‐ visible before each qrs complex p‐r interval ‐ normal (<5 small squares. In this post, i cover how the tool works and ...Review. Electrocardiograms (abbreviated as EKG or ECG interchangeably) are key diagnostic tools for analyzing and interpreting cardiac rhythms, conduction abnormalities, and ischemia in the heart. They may also be used to evaluate the severity of certain cardiac abnormalities (E.g. heart disease, cardiomyopathy, pericarditis, and hypertension).When it comes to writing, there’s more to it than just choosing the right words and crafting compelling sentences. The rhythm of your writing plays a crucial role in engaging your ...The p wave represents the atrial rhythm and rate. Therefore, the atrial rhythm should be regular and rate 60-100 bpm. PR interval should measure 0.12-0.20 seconds….anything greater than 0.20 seconds, think HEART BLOCK. A QRS complex should be present after every p-wave and should measure no more than 0.12 seconds.

Polymorphic VTach (Torsades) L. Fine Ventricular Fibrillation. M. 2nd Degree Type II Block. N. Monomorphic VTach. Free ACLS Certification ECG Rhythms practice test.

Download this EKG Practice Test to encompass a range of cardiac rhythms, from normal sinus rhythm to more complex conditions like ventricular tachycardia and …A sinus rhythm faster than the normal range is called a sinus tachycardia, while a slower rate is called a sinus bradycardia. (See "Sinus tachycardia: Evaluation and management" and "Sinus bradycardia".) The sinoatrial (SA) node, due to its small mass, does not have a visible manifestation on the electrocardiogram (ECG).Click or tap the cards to see the answer. 33 Atrial fibrillation/flutter goes between no discernible P's and flutter waves. 125 Sinus rhythm (could be junctional tachycardia). Hard to see P waves. Practice rhythm strip interpretation with our flash card practice. Sharpen your skills in identifying arrhythmias and mastering ECG analysis.Printable Ekg Rhythms - Lippincott williams & wilkin) isbn. Atrial flutter is an abnormal rhythm that occurs in the atria of the heart. Pr interval < 0.20 seconds d. Our online ekg training courses provide lessons and exercises in ekg rhythm analysis and a wide range of heart rhythms strips for. Web ecg interpretation with the clinical ...Rate: 101 - 180 BPM. Rhythm: Regular. P Waves: May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and AVR. PR Interval: If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval.ECG Strip Interpretation. 470 terms. Lou_Matz. Preview. Anti-arrhythmic drugs. 65 terms. larxf. Preview. Pharm Exam 2. 23 terms. Grant_Wallace88. Preview. Terms in this set (24) Sinus Rhythms. P's upright and uniform to pick these rhythms. Normal Sinus Rhythm. rate 60 to 100. Sinus Brady. rate < than 60.Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. Download now!PALS EKG Practice Test 1 This EKG practice test is designed to help you learn to recoginze all of the EKG rhythms that you will encounter during emergencies and during the AHA PALS provider course. Use these EKG practice tests to help you become proficient in your rapid rhythm identification.The full course includes all aspects of ACLS from algorithm review, rhythm recognition, skills station prep, pharmacology, primary and secondary surveys, stroke, AED/defibrillator use, and more. Use the buttons below to access some free ACLS practice tests. Free Bradycardia Quiz 1 Free Bradycardia Quiz 2 Free Bradycardia Quiz 3

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Rate: 101 - 180 BPM. Rhythm: Regular. P Waves: May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and AVR. PR Interval: If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval.Jan 21, 2024 · EKG Interpretation & Heart Arrhythmias Cheat Sheet. Updated on January 21, 2024. By Matt Vera BSN, R.N. Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart’s ... ECG features of normal sinus rhythm. Regular rhythm at a rate of 60-100 bpm (or age-appropriate rate in children) Each QRS complex is preceded by a normal P wave. Normal P wave axis: P waves upright in leads I and II, inverted in aVR. The PR interval remains constant.ECG (EKG) examples and quiz . For each of the questions below a short clinical scenario is given followed by the 12-lead ECG. Review the ECG (EKG), present it according to the structure in ECG interpretation and attempt a diagnosis before clicking on the plus symbol to see the answer. Question 1. A 35 year old man presents with palpitations.There are 3 self-assessment tests: ECG Rhythm Identification, Pharmacology, and Practical Application. You are called to help resuscitate an infant with severe symptomatic bradycardia associated with respiratory distress. The bradycardia persists despite establishment of an effective airway, oxygenation, and ventilation.How to Share Your ECG with Your Doctor. To view an ECG and share it with your doctor, open the "Health" app on your iPhone and go to "Browse" > "Heart" > "Electrocardiograms (ECG)." You'll see your three most recent ECG recordings. To view older ones, scroll down and tap "All Data." You can also view them by the different results categories.ECG Rhythm Evaluation. Chris Nickson. Jun 1, 2023. Home ECG Library ECG Basics. The rhythm is best analyzed by looking at a rhythm strip. On a 12 lead ECG this is usually a 10 second recording from Lead II. Confirm or corroborate any findings in this lead by checking the other leads. A longer rhythm strip, recorded perhaps recorded at a slower ...Recall and apply the 5-steps of heart rhythm interpretation. Recognize the difference between regular and irregular rhythms. Recall the normal range for PR interval and QRS complex. Recognize the features and qualifying criteria for the following complexes and rhythms: Premature Atrial Complexes. Wandering Atrial Pacemaker Rhythm. ….

Explanation: This rapid ECG rhythm includes narrow QRS complexes, an absence of P waves prior to each QRS and a rate faster than 100/minute. This rhythm occurs at a rate of about 180-190/minute. Notice the inverted waveform after many of the QRS complexes - possible further evidence for junctional tachycardia (inverted P waves).ECG Interpretation 1) RHYTHM: regular, regularly irregular, irregularly irregular 2) RATE: tachy or brady 4) CARDIAC AXIS DEVIATION: S greater than R in lead I = RIGHT AXIS S greater than R in lead II = LEFT AXIS 3) P wave =atria depolarising should be 1 P for every QRS: How many Ps per QRS? How long is the PQ interval?Voltage/amplitude is represented vertically on the graph paper. Each small box has a time value of 0.04 second. Each large box has a time value of 0.20 second. Standard paper speed is 25mm/sec and can be adjusted. Standard calibration is 10mm/mV and can be adjusted. Recognize the difference between regular and irregular rhythms.ECG/EKG Practice Quiz (Identify Rhythms) 1. Select the options below that best describe the rhythm above: (Required) G. First-Degree Heart Block. 2. The nurse notes the rhythm above on the cardiac monitor. The nurse does a pulse check and a pulse is present.4. Determine Your Heart Rate. Look at the EKG/ECG to see if the rate is regular and how fast the heart is beating; both are important for rhythm interpretation. The pace at which a rhythm is conducting can help determine the stability of the rhythm. A stable rhythm often correlates with a stable patient.Nurses assist with obtaining electrocardiograms (ECGs) and implementing cardiac monitoring to analyze the electrical activity of a client's heart. They must be able to interpret abnormal cardiac rhythms and quickly address them or obtain emergency assistance. This chapter will review the anatomy and physiology of the cardiovascular system and the electrical conduction system and then ...Showing top 8 worksheets in the category - Ekg Practice Test. Some of the worksheets displayed are 150 practice ecgs interpretation and review, Basic cardiac rhythms identification and response, Introduction to basic ekg interpretation, Ekg interpretation 15, Review packet ekg competency 2016, Basic cardiac arrhythmias, The six second ecg, …In normal sinus rhythm with 1:1 atrioventricular (AV) conduction, a P wave with a uniform morphology precedes each QRS complex. The rate is between 50 and 100 beats per minute, though some use 60 beats per minute as the lower end of normal, and the cycle length is fairly uniform between sequential P waves and QRS complexes.EKG rhythms. 60 terms. MelFlan. Preview. NIH Stroke Scale Group B Patient 1-6. 6 terms. jnw803. Preview. D&M 3: Module 2-Heart Failure (Exam 1) 73 terms. phall1012. Preview. Pediatric Cardiac. ... To determine the rate of a regular EKG strip, you can divide ___ by the number of large boxes or divide ___ by the number of small boxes. 300, 1500.EKG Practice Test 1. This EKG practice test is designed to help you learn to recoginze all of the EKG rhythms that you will encounter during emergencies and during the AHA ACLS provider course. Use these EKG practice tests to help you become proficient in your rapid rhythm identification. Time limit: 0. Quiz Summary. Printable ekg rhythms, Rhythm Recognition. Knowing how to read and interpret ECGs is a critically important skill in ACLS and PALS. Take a moment to review the most common cardiac rhythms encountered in ACLS and PALS. The Prototypical ECG Tracing. The P wave corresponds to electrical impulse traveling through the atria. This is synonymous with atrial depolarization ..., Atrial Flutter. There are two types of atrial flutter. Type I (also called classical or typical) has a rate of 250-350 bpm. Type II (also called non-typical) are faster, ranging from 350-450 bpm. ECG tracings will show tightly spaced waves or saw-tooth shaped waveforms (F-waves)., Study of a patient's cardiac rhythms using an ECG may indicate normal or abnormal conditions. Abnormal rhythms are called arrhythmia or sometimes, dysrhythmia. Arrhythmia is an abnormally slow or fast heart rate or an irregular cardiac rhythm. During a single heart beat, several electrical events occur., ST segment interpretation. For diagnostic or ST segment interpretation, or to enhance internal pacemaker pulse visibility, attach the multi-lead ECG cable. Then print the ECG rhythm in diagnostic frequency response (DIAG) or obtain a 12-lead ECG. ©2007-2015 Physio-Control, Inc. LIFEPAK 15 Monitor/Defibrillator Operating Instructions..., EKG Rhythms. Rapid access to summaries for common EKG rhythms. Reference Guide. Quickly access information for 60 EKG abnormalities. Authors, Reviewers and Developers EKG rhythms classes: Thomas O'Brien. EKG monitor simulation: Steve Collmann 12 Lead Lecture: Dr. Michael Mazzini, MD, Cardiologist., The interpretation algorithm presented below is easy to follow and it can be carried out by anyone. The reader will gradually notice that ECG interpretation is markedly facilitated by using an algorithm, as it minimizes the risk of missing important abnormalities and also speeds up the interpretation. 1. Rhythm., 4. Determine Your Heart Rate. Look at the EKG/ECG to see if the rate is regular and how fast the heart is beating; both are important for rhythm interpretation. The pace at which a rhythm is conducting can help determine the stability of the rhythm. A stable rhythm often correlates with a stable patient., Study with Quizlet and memorize flashcards containing terms like Sinus Tachycardia Find and correct possible causes (fluids for dehydration; stop doing cocaine), Sinus Bradycardia -Atropine IV 0.5 mg bolus -repeat Atropine 0.5 mg every 3-5 min (max 6 doses) -If HR and BP still low dopamine or epinephrine infusion -if no improvement transcutaneous pacing *can develop into any of the 4 heart ..., Review. Electrocardiograms (abbreviated as EKG or ECG interchangeably) are key diagnostic tools for analyzing and interpreting cardiac rhythms, conduction abnormalities, and ischemia in the heart. They may also be used to evaluate the severity of certain cardiac abnormalities (E.g. heart disease, cardiomyopathy, pericarditis, and hypertension)., EKG Features Rate: Characterized by Atrial rate usually faster than ventricular rate (usually slow) Rhythm: Regular (atrial) and irregular (ventricular) P Wave: Normal form, but more P waves than QRS complexes PR Interval: Normal or prolonged QRS: Normal or wide A constant P-R interval with missing QRS complexes. Occurring in a specific pattern in a ratio with the P waves., Cardiologist Basic EKG ECG Rhythms Poster - Cardiologist Poster Decor Home, Wall Art Print Decor (Size 12x18, 16x24, 24x36 Inches) Visit the Custom Store 5.0 5.0 out of 5 stars 3 ratings, A rapid heart rhythm in which the electrical impulse begins in the ventricle (instead of the atrium), which may result in inadequate blood flow and will eventually deteriorate into cardiac arrest. Characterized by a "saw tooth" or "shark tooth" rhythm strip. It is a polymorphic ventricular tachycardia that is charazterized by "twisting peaks ..., Electrocardiogram (ECG) An electrocardiogram (ECG) is a graphic representation of the electrical activity of the heart plotted against time. Electrocardiograms are simple, inexpensive, noninvasive, and readily obtained. Adhesive electrodes are affixed to the skin surface allowing measurement of cardiac impulses from many angles., The EKG practice tests (drills) provide a fast method for EKG rhythm strip practice. Users are asked to identify the arrhythmia category for randomly selected EKG strips. Immediate feedback is displayed after each response. Ideal for EKG strip practice on smartphones., The electrical axis at a glance. A brief history of electrocardiography. A page of comments and corrections for our book 'ECGs by Example'. The 12 lead ECG library - ecglibrary.com. A collection of electrocardiograms. Learn electrocardiography by seeing examples of the various abnormalities., If you're taking ACLS certification with companies accredited by the American Heart Association (AHA), you have to pass at least 70% of the pre-exam.Skip to ..., www.emcare.co.nz 0800 362 273 [email protected]. ECG Rhythm Study Guide for CORE Advanced. Normal Sinus Rhythm: Non-shockable. Looking at the ECG you'll see that: • Rhythm ‐ Regular • Rate ‐ 60 to 100 bpm • QRS Duration ‐ Normal • P Wave ‐ Visible before each QRS complex • P‐R Interval ‐ Normal (<5 small Squares., Electrocardiogram Enlarge image. An electrocardiogram (ECG or EKG) is a quick test to check the heartbeat. It records the electrical signals in the heart. Test results can help diagnose heart attacks and irregular heartbeats, called arrhythmias. ECG machines can be found in medical offices, hospitals, operating rooms and ambulances., Study of a patient's cardiac rhythms using an ECG may indicate normal or abnormal conditions. Abnormal rhythms are called arrhythmia or sometimes, dysrhythmia. Arrhythmia is an abnormally slow or fast heart rate or an irregular cardiac rhythm. During a single heart beat, several electrical events occur., Here is a list of all the EKG strips that you should know before taking your EKG certification exam. Accelerated Idioventricular Rhythm. Accelerated Junctional Rhythm. Asystole. Atrial Fibrillation. Atrial Flutter. Bundle Branch Block. First Degree Heart Block. Idioventricular Rhythm., EKG Interpretation Cheat Sheet: Welcome to our guide for EKGs. Select one of the EKG types below to review that EKG's features and a sample strip. We have over 35 different types of EKGs in our web app. Atrial. Conduction. Junction. Pacemaker. Sinus., Any organized rhythm without detectable pulse is “PEA” ACLS Rhythms for the ACLS Algorithms 255 3. PEA (Pulseless Electrical Activity) Defining Criteria per ECG Rhythm displays organized electrical activity (not VF/pulseless VT) Seldom as organized as normal sinus rhythm Can be narrow (QRS <0.10 mm) or wide (QRS >0.12 mm); fast (>100 …, Normally EKG graph paper has thick dark lines at the top or bottom of the paper. In the strip presented here, the lines are at the bottom of the paper. The space between the lines is equal to 3 seconds. A standard EKG strip is run over 6 seconds. When printing an EKG rhythm strip the paper prints at a standard speed of 25 mm per second., Reference Guide. Quickly access information for 60 EKG abnormalities. Quickly learn essential EKG analysis and interpretation skills. Lessons, practice drills, graded quizzes and certificates of achievement., It’s a skill that takes time, practice and refreshing. Your ability to identify basic EKG changes in real time is vital. Practice with an app that actually looks like what you see at work. Twenty three rhythms presented randomly in lead II. Practice identification or simply view. Rhythms run across three different strips., Chapter 035 - ADULT CARE 3 MATERIAL. Chapter 017 - ADULT CARE 3 MATERIAL. Invasive Cardiac Procedures. OB Final study guide 12. EKG Practice Strips 3. EKG Practice Strips 2 Answer Key. Practice strips for EKG rhythms. Determine the parts of the rhythm, practice measuring the PR interval and the QRS interval, and identify the rhythm. Answer., Atrial pacing appears on the ECG as a single pacemaker stimulus followed by a P wave ( waveform 1) (see "Modes of cardiac pacing: Nomenclature and selection") The morphology of the P wave depends upon the location of the atrial lead; it may be normal, diminutive, biphasic, or negative. The PR interval and configuration of the QRS complex are ..., Common findings. Sinus rhythm (which is the normal rhythm) has the following characteristics: (1) heart rate 50-100 beats per minute; (2) P-wave precedes every QRS complex; (3) the P-wave is positive in lead II and (4) the PR interval is constant. Causes of bradycardia: sinus bradycardia, sinoatrial block, sinoatrial arrest/inhibition, second ..., Ekg Rhythms. Displaying all worksheets related to - Ekg Rhythms. Worksheets are Ekg rhythm interpretation exam, Basic cardiac rhythms identification and response, Review packet ekg competency 2016, Ecg rhythm study guide, Rhythm ecg characteristics example, Basic ecg rhythm interpretation, Ecg basics, 150 practice ecgs interpretation and review., Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. Download now!, Printable gift cards are a great way to make extra cash as well as a good marketing strategy. Here are the best printable gift card options out there. If you buy something through ..., • Sequence the steps in analyzing an ECG rhythm strip. • Describe the normal parameters for the following aspects of an ECG rhythm strip: Rate, Rhythm, P waves, PR interval, and QRS complex duration • Describe two common methods for calculating heart rate on an ECG rhythm strip and the indications for using each method., An abnormal electrocardiogram indicates heart rhythm abnormalities, damage to the heart muscle or problems with the amount of electrolytes in the blood, notes MedlinePlus. During a...