EKG Measurements and Waveforms Quiz
162 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What characterizes a Third Degree Atrioventricular heart block?

  • Stable and consistent heart rhythm with no electrical disruption
  • The heart's inability to pump blood effectively (correct)
  • Increased muscle function leading to enhanced blood flow
  • Partial obstruction of electrical signals to the brain

    • Which of the following drugs is typically used in anti-platelet therapy?

  • Warfarin
  • Plavix (correct)
  • Aspirin
  • Ibuprofen

    • What is the normal respiration rate range for adults?

  • 15-25 breaths per minute
  • 10-15 breaths per minute
  • 12-20 breaths per minute (correct)
  • 8-12 breaths per minute

    • In an electrocardiogram, what does Lead I measure?

    <p>Electrical current between the right arm and the left arm</p> Signup and view all the answers

    What does the term 'respondeat superior' refer to in a medical context?

    <p>An employer's responsibility for their employees' actions</p> Signup and view all the answers

    What characterizes Polymorphic Ventricular Tachycardia?

    <p>QRS complexes gradually changing in shape, size, and direction over a series of beats.</p> Signup and view all the answers

    Which condition describes a situation where the impulse is delayed or blocked in the conduction pathway?

    <p>Bundle branch block</p> Signup and view all the answers

    In which condition does the R wave of a premature ventricular contraction fall on the T wave of the preceding complex?

    <p>R on T phenomenon</p> Signup and view all the answers

    Which heart rhythm is characterized by a heart rate greater than 100 beats per minute?

    <p>Sinus Tachycardia</p> Signup and view all the answers

    Chest lead 4 is placed in which anatomical location?

    <p>5th intercostal space at midclavicular line</p> Signup and view all the answers

    What is the primary function of the lymphatic system?

    <p>Defense against infection</p> Signup and view all the answers

    When is health information permitted to be disclosed?

    <p>Upon written authorization from the parent, patient, or guardian</p> Signup and view all the answers

    Which of the following best describes informed consent?

    <p>Providing patients enough information to make treatment decisions</p> Signup and view all the answers

    What does the abbreviation 'Hct' stand for in medical terms?

    <p>Hematocrit</p> Signup and view all the answers

    What is the most common bloodborne illness among healthcare professionals?

    <p>Hepatitis B and C, HIV</p> Signup and view all the answers

    Which formula correctly converts inches to centimeters?

    <p>inches multiplied by 2.54</p> Signup and view all the answers

    What does 'p.c.' signify in medical terms?

    <p>After meals</p> Signup and view all the answers

    Which division of the autonomic nervous system is responsible for the 'fight or flight' response?

    <p>Sympathetic nervous system</p> Signup and view all the answers

    Which component of blood is primarily responsible for transporting oxygen throughout the body?

    <p>Red blood cells</p> Signup and view all the answers

    What is the role of the AV node in the heart?

    <p>Acts as a gatekeeper between atria and ventricles</p> Signup and view all the answers

    In terms of cardiac cycle, when will atrial and ventricular rates be different?

    <p>When the QRS complex does not follow every P wave</p> Signup and view all the answers

    What is the characteristic feature of multifocal PVCs?

    <p>Different shapes in the QRS complexes</p> Signup and view all the answers

    What does the term 'ischemia' refer to?

    <p>Reduced blood supply to tissues</p> Signup and view all the answers

    Which lead is positioned at the bottom row of a standard 12-lead EKG?

    <p>Lead II</p> Signup and view all the answers

    What type of rhythm is characterized by wide QRS complexes without a preceding P wave?

    <p>Ventricular escape beat</p> Signup and view all the answers

    What condition is commonly known as a heart attack?

    <p>Myocardial infarction</p> Signup and view all the answers

    What does the QRS complex represent in an EKG?

    <p>Ventricular depolarization</p> Signup and view all the answers

    What is the maximum allowable duration for a PR interval?

    <p>0.20 seconds</p> Signup and view all the answers

    What does a straight line on an EKG strip indicate?

    <p>Ventricular asystole</p> Signup and view all the answers

    What does ventricular repolarization refer to?

    <p>Relaxation of the ventricles</p> Signup and view all the answers

    Which segment in an EKG represents ventricular systole?

    <p>ST segment</p> Signup and view all the answers

    How is atrial flutter identified on an EKG strip?

    <p>Merging of P wave and T wave</p> Signup and view all the answers

    What is the safe range for a normal QRS complex duration?

    <p>0.06-0.12 seconds</p> Signup and view all the answers

    What does a prolonged ST segment indicate?

    <p>Ischemia or infarction</p> Signup and view all the answers

    What is a common characteristic of ventricular fibrillation on an EKG strip?

    <p>Chaotic twitching in the ventricles</p> Signup and view all the answers

    What defines a unifocal rhythm on an EKG?

    <p>Identical premature heartbeats</p> Signup and view all the answers

    What is the defining characteristic of Torsades de pointes?

    <p>The QRS complex twists from one side of the baseline to another.</p> Signup and view all the answers

    Which of the following statements accurately describes sinus bradycardia?

    <p>It occurs when the heart rate is less than 60 beats per minute.</p> Signup and view all the answers

    What is the significance of the R on T phenomenon?

    <p>It occurs when a PVC's R wave falls on the T wave of the preceding complex.</p> Signup and view all the answers

    Where is chest lead 5 placed on the human body?

    <p>Left anterior axillary line.</p> Signup and view all the answers

    Which of the following describes polymorphic ventricular tachycardia?

    <p>QRS complexes that evolve in shape, size, and direction.</p> Signup and view all the answers

    What does the QT interval represent in an EKG?

    <p>Time required for ventricular depolarization &amp; repolarization</p> Signup and view all the answers

    What is the normal range for a PR interval?

    <p>0.12-0.20 seconds</p> Signup and view all the answers

    What is the characteristic appearance of atrial fibrillation on an EKG strip?

    <p>Absence of P wave</p> Signup and view all the answers

    Which interval indicates the time taken for the SA node to fire?

    <p>PR interval</p> Signup and view all the answers

    What is indicated by a straight line on an EKG strip?

    <p>Ventricular Asystole</p> Signup and view all the answers

    How is ventricular fibrillation typically described on an EKG?

    <p>Chaotic twitching of the ventricles</p> Signup and view all the answers

    What does the term 'unifocal' refer to in the context of an EKG strip?

    <p>Multiple identical premature heartbeats</p> Signup and view all the answers

    What condition is characterized by the heart's inability to pump blood effectively due to a complete heart block?

    <p>Third Degree Atrioventricular Heart Block</p> Signup and view all the answers

    Cerebral Angiography is primarily used to visualize which of the following?

    <p>Blood vessels in and around the brain</p> Signup and view all the answers

    What is the standardized speed of paper running on an EKG strip?

    <p>25 mm per second</p> Signup and view all the answers

    The term 'my/o' in medical terminology refers to which of the following?

    <p>Muscle</p> Signup and view all the answers

    How many precordial leads are there in a standard EKG setup?

    <p>6</p> Signup and view all the answers

    What is the primary role of the AV node in the heart?

    <p>Conducting impulses to the ventricles</p> Signup and view all the answers

    What does the area defined as a sterile field protect during a medical procedure?

    <p>Patient's health and safety</p> Signup and view all the answers

    What does Lead II on an electrocardiogram measure?

    <p>Electrical current from right arm to left leg</p> Signup and view all the answers

    Sick sinus syndrome is also referred to as which condition?

    <p>Sinoatrial node disease</p> Signup and view all the answers

    The principle of respondeat superior relates to which aspect of employer-employee relationships?

    <p>Employer's liability for employee actions</p> Signup and view all the answers

    Which term describes the intentional threat of touching or harming a person?

    <p>Assault</p> Signup and view all the answers

    What does the abbreviation 'RBC' stand for in a medical context?

    <p>Red Blood Cell</p> Signup and view all the answers

    What is the primary purpose of the SOAP documentation method?

    <p>To record subjective and objective findings</p> Signup and view all the answers

    Which option describes what a stop sign outside of a patient's room indicates?

    <p>Check with the nurse for special precautions</p> Signup and view all the answers

    What does 'hemoconcentration' indicate?

    <p>Change in blood composition due to lack of plasma</p> Signup and view all the answers

    What condition is most commonly represented by a sustained idioventricular rhythm associated with the pain of dying?

    <p>Agonal rhythm</p> Signup and view all the answers

    What is considered protected health information?

    <p>Any personal identifiable health information</p> Signup and view all the answers

    Which term describes the lack of blood supply that can lead to tissue damage?

    <p>Ischemia</p> Signup and view all the answers

    Which of the following divisions comprise the autonomic nervous system?

    <p>Sympathetic and parasympathetic</p> Signup and view all the answers

    Which feature on an EKG specifically represents changes in ventricular depolarization?

    <p>QRS complex</p> Signup and view all the answers

    What does the abbreviation 'EMR' represent?

    <p>Electronic Medical Record</p> Signup and view all the answers

    What does ventricular tachycardia indicate when the QRS complexes are uniform?

    <p>Monomorphic</p> Signup and view all the answers

    What does the abbreviation 'ICD-10-CM' refer to?

    <p>International Classification of Disease-Tenth Revision-Clinical Modification</p> Signup and view all the answers

    Which of the following is a key component in preventing the transfer of microorganisms in healthcare settings?

    <p>Washing hands frequently</p> Signup and view all the answers

    What condition is characterized by premature ventricular contractions that arise from multiple foci, with complexes appearing different from one another?

    <p>Multifocal PVCs</p> Signup and view all the answers

    Which of the following describes electrical charge changes during depolarization?

    <p>Negative to positive</p> Signup and view all the answers

    Which wave on the EKG reflects changes associated with the atrial contraction before ventricular depolarization?

    <p>P wave</p> Signup and view all the answers

    What heart structure is responsible for regulating impulse conduction between atria and ventricles?

    <p>AV node</p> Signup and view all the answers

    What term describes pain in the heart region caused by insufficient oxygen supply?

    <p>Angina</p> Signup and view all the answers

    What kind of artifact does Parkinson's disease typically create on an EKG?

    <p>Somatic tremor</p> Signup and view all the answers

    What is a common feature of ventricular fibrillation?

    <p>Disorganized, ineffective twitching of the ventricles</p> Signup and view all the answers

    In which condition do QRS complexes twist from one side of the baseline to the other?

    <p>Torsades de pointes</p> Signup and view all the answers

    What is the anatomical placement location for Chest Lead 2?

    <p>4th intercostal space to the left of the sternum</p> Signup and view all the answers

    Which of the following best describes a run of ventricular tachycardia (VT)?

    <p>At least three PVCs in a row</p> Signup and view all the answers

    What is the key characteristic of a bundle branch block?

    <p>Delay or blockage within the bundle branches</p> Signup and view all the answers

    What is the primary purpose of an echocardiogram?

    <p>To assess heart structure and function</p> Signup and view all the answers

    What is the function of the precordial leads in an EKG?

    <p>To record electrical activity across the chest</p> Signup and view all the answers

    Which leads on an EKG represent the electrical current between the limbs?

    <p>Lead I, Lead II, Lead III</p> Signup and view all the answers

    What is the adequate range representing a normal respiration rate in adults?

    <p>12-20 breaths per minute</p> Signup and view all the answers

    What is a key characteristic of Sick Sinus Syndrome?

    <p>Inefficient atrial contraction due to node dysfunction</p> Signup and view all the answers

    Respondeat superior refers to which of the following concepts?

    <p>An employer's liability for the actions of employees</p> Signup and view all the answers

    Which characteristic is associated with a normal EKG standard rate?

    <p>25 mm per second</p> Signup and view all the answers

    What does a cerebrovascular angiography primarily visualize?

    <p>Blood vessels in and around the brain</p> Signup and view all the answers

    How many precordial leads are typically used in EKG monitoring?

    <p>6</p> Signup and view all the answers

    What is the primary active ingredient in the medication known as Plavix?

    <p>Clopidogrel</p> Signup and view all the answers

    What does the T wave on an EKG represent?

    <p>Ventricular repolarization</p> Signup and view all the answers

    What is the duration range of a normal QT interval?

    <p>0.36-0.44 seconds</p> Signup and view all the answers

    How long should a PR interval be in a healthy individual?

    <p>0.12-0.20 seconds</p> Signup and view all the answers

    Which of the following describes the significance of an elevated ST segment?

    <p>Sign of myocardial ischemia or infarction</p> Signup and view all the answers

    What is the identified characteristic of ventricular asystole on an EKG strip?

    <p>A straight line</p> Signup and view all the answers

    What does the presence of P wave merging with the T wave indicate?

    <p>Atrial flutter</p> Signup and view all the answers

    In a healthy individual, the normal firing rate of the SA node should be:

    <p>60-100 bpm</p> Signup and view all the answers

    Which waveform on an EKG strip reflects both ventricular depolarization and atrial repolarization?

    <p>QRS complex</p> Signup and view all the answers

    What is the main purpose of using PPE in a healthcare setting?

    <p>To prevent transfer of microorganisms</p> Signup and view all the answers

    What does the abbreviation 'RBC' refer to in medical terminology?

    <p>Red Blood Cell</p> Signup and view all the answers

    What is hemoconcentration typically caused by?

    <p>Lack of plasma</p> Signup and view all the answers

    In what scenario is health information permissible to be released?

    <p>Only with written authorization from a legal guardian</p> Signup and view all the answers

    Which of the following is included in protected health information?

    <p>Any identifiable health information</p> Signup and view all the answers

    What does the 'SOAP' method primarily facilitate in healthcare documentation?

    <p>Organized patient assessment and plan</p> Signup and view all the answers

    What does the presence of a stop sign outside a patient's room indicate?

    <p>Consult with nursing staff before entering</p> Signup and view all the answers

    What is the primary role of the aorta in the circulatory system?

    <p>To distribute blood from the left ventricle to the body</p> Signup and view all the answers

    Which of the following compounds primarily provides electrolytes in the body?

    <p>Minerals</p> Signup and view all the answers

    What does the 'ICD-10-CM' stand for in medical coding?

    <p>International Classification of Disease-Tenth Revision-Clinical Modification</p> Signup and view all the answers

    What effect does atrial enlargement have on an EKG?

    <p>It modifies the P wave</p> Signup and view all the answers

    Which of the following describes a significant cause of myocardial infarction?

    <p>Coronary heart disease</p> Signup and view all the answers

    What does the term 'systolic' refer to in a blood pressure reading?

    <p>The pressure when the heart contracts</p> Signup and view all the answers

    Which characteristic is indicative of ventricular tachycardia?

    <p>Very fast heart rate with consistent QRS complexes</p> Signup and view all the answers

    What does the AV node primarily serve as in the heart's conduction system?

    <p>A connector between atria and ventricles</p> Signup and view all the answers

    What is the primary distinction between unifocal and multifocal PVCs?

    <p>Multifocal PVCs arise from different foci in the ventricles</p> Signup and view all the answers

    Which of the following conditions is evidenced by a wide QRS complex without a preceding P wave?

    <p>Ventricular escape beat</p> Signup and view all the answers

    What does the term 'agnonal rhythm' signify in terms of heart rhythms?

    <p>Sustained idioventricular rhythm associated with impending death</p> Signup and view all the answers

    How is the electrical charge during depolarization characterized?

    <p>Change from negative to positive</p> Signup and view all the answers

    Which condition is characterized by disorganized twitching of the ventricles resulting in ineffective blood flow?

    <p>Ventricular Fibrillation</p> Signup and view all the answers

    What is the correct placement location for chest lead 6?

    <p>Left midaxillary line</p> Signup and view all the answers

    What is described as a conduction path that deviates from the normal impulse pathway?

    <p>Aberrant Conduction Path</p> Signup and view all the answers

    Which of the following best describes Torsades de pointes?

    <p>QRS complex twisting from one side of the baseline to the other</p> Signup and view all the answers

    What is the minimum heart rate classified as Sinus Bradycardia?

    <p>&lt;60 bpm</p> Signup and view all the answers

    What does the T wave represent in an EKG?

    <p>Ventricular repolarization</p> Signup and view all the answers

    What is the normal range for the QT interval on an EKG?

    <p>0.32-0.44 seconds</p> Signup and view all the answers

    How long can a QRS complex be in a normal EKG?

    <p>0.06-0.12 seconds</p> Signup and view all the answers

    What does ventricular asystole appear as on an EKG strip?

    <p>A straight line</p> Signup and view all the answers

    In which EKG condition is there an absence of P waves?

    <p>Atrial fibrillation</p> Signup and view all the answers

    How is atrial flutter typically identified on an EKG strip?

    <p>Merging of P wave and T wave</p> Signup and view all the answers

    Which condition is suggested by elevated ST segments on an EKG?

    <p>Ischemia or infarction</p> Signup and view all the answers

    What does the PR interval in an EKG measure?

    <p>Time from the beginning of the P wave to the beginning of the QRS complex</p> Signup and view all the answers

    Which of the following correctly describes a sterile field in a medical context?

    <p>An area maintained free of microorganisms</p> Signup and view all the answers

    Which of the following leads in an EKG measures the electrical current from the heart to the left leg?

    <p>Lead II</p> Signup and view all the answers

    What is indicated by the term 'my/o' in medical terminology?

    <p>Muscle</p> Signup and view all the answers

    What does 'Sinoatrial node disease' commonly refer to?

    <p>Sick sinus syndrome</p> Signup and view all the answers

    What does the standardized rate of 25 mm per second on an EKG strip indicate?

    <p>The speed at which the EKG develops</p> Signup and view all the answers

    What is the characteristic of cerebral angiography?

    <p>It captures X-ray images of blood vessels in the brain</p> Signup and view all the answers

    What type of responsibility does 'respondeat superior' imply for an employer?

    <p>Responsibility for employees' actions during work-related tasks</p> Signup and view all the answers

    How many precordial leads are typically used in an EKG?

    <p>6</p> Signup and view all the answers

    Which heart condition is described by the inability to pump blood effectively due to a complete heart block?

    <p>Third degree atrioventricular block</p> Signup and view all the answers

    What is the function of personal protective equipment (PPE) in a healthcare setting?

    <p>To prevent the transmission of infections</p> Signup and view all the answers

    What abbreviation represents the International Classification of Disease-Tenth Revision-Clinical Modification?

    <p>ICD-10-CM</p> Signup and view all the answers

    In health documentation, what does the acronym SOAP stand for?

    <p>Subjective, Objective, Assessment, Plan</p> Signup and view all the answers

    Which of the following best describes the change in blood composition caused by lack of plasma?

    <p>Hemoconcentration</p> Signup and view all the answers

    What is the primary purpose of washing hands frequently in a healthcare environment?

    <p>To prevent the transfer of microorganisms</p> Signup and view all the answers

    Which of the following represents a characteristic of the lymphatic system?

    <p>Provides defense against infections</p> Signup and view all the answers

    What does the abbreviation RBC stand for?

    <p>Red Blood Cell</p> Signup and view all the answers

    Which statement accurately describes the process of informed consent in medical practice?

    <p>Patients must be given sufficient information to make informed choices.</p> Signup and view all the answers

    What does the term 'Hct' refer to in medical terminology?

    <p>Hematocrit</p> Signup and view all the answers

    The symbol for antigen in medical abbreviations is denoted by which element?

    <p>Ag</p> Signup and view all the answers

    What is the major muscle responsible for respiration that separates the thoracic and abdominal cavities?

    <p>Thoracic diaphragm</p> Signup and view all the answers

    Which condition is identified with a bluish discoloration of the skin due to lack of oxygen?

    <p>Cyanosis</p> Signup and view all the answers

    What are the characteristics of multifocal PVCs as seen in an EKG?

    <p>Arise from multiple foci, appear different in shape</p> Signup and view all the answers

    Which part of the heart receives blood from the coronary arteries?

    <p>Ventricles</p> Signup and view all the answers

    What rhythm is characterized by a sustained idioventricular rhythm associated with dying?

    <p>Agonal rhythm</p> Signup and view all the answers

    What does the P wave represent in a standard EKG?

    <p>Atrial depolarization</p> Signup and view all the answers

    Which of the following terms refers to the lack of blood supply to tissues?

    <p>Ischemia</p> Signup and view all the answers

    In relation to blood pressure readings, what does the systolic number represent?

    <p>Pressure during ventricular systole</p> Signup and view all the answers

    What type of artifact is caused by Parkinson's disease during an EKG?

    <p>Somatic tremor</p> Signup and view all the answers

    What does an interval that indicates a delay in returning to the baseline in an EKG point to?

    <p>Myocardial injury</p> Signup and view all the answers

    Study Notes

    EKG Measurements

    • Small EKG box: 0.04 seconds
    • Large EKG box: 0.20 seconds
    • 5 large EKG boxes: 1 second
    • EKG measures: Electrical pathway of the heart
    • Components: SA node, AV node, bundle of His, bundle branches, Purkinje fibers

    EKG Waveforms

    • P wave: Atrial depolarization (atrial contraction)
    • QRS complex: Ventricular depolarization (ventricular contraction) and atrial repolarization
    • T wave: Ventricular repolarization (relaxation of ventricles)
    • PR interval: Time from the beginning of the P wave to the beginning of the QRS complex (takes SA node to fire). Duration 0.12-0.20 seconds.
    • QRS duration: Duration 0.06-0.12 seconds
    • QT interval: Time required for ventricular depolarization & repolarization; 0.44 seconds
    • ST segment: Ventricular systole (contraction of ventricles).

    Medical Positions and Terminology

    • Anatomic position: Standing erect, arms down to the sides, palms facing out.
    • Pulmonary vein: Carries oxygenated blood to the body.
    • Aorta: Largest artery in the body
    • Skin: Largest organ in the body
    • Potassium: (K) element measuring time on an EKG strip
    • Lead I, II, III: Bipolar limb leads measure electrical current between different limbs.
    • Precordial leads: Chest leads.
    • Right arm lead: White
    • Right leg lead: Green
    • Left arm lead: Black
    • Left leg lead: Red
    • Chest lead order: Red, Yellow, Green, Blue, Orange, Purple

    Other Medical Information

    • Normal firing rate of SA node: 60-100 bpm
    • Normal respiration rate: 12-20 breaths/minute
    • Normal paper speed on EKG: 25 mm/second
    • Normal Sodium range: 135-145
    • Normal Potassium range: 3.6-5.2

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    EKG Quiz Questions PDF

    Description

    Test your knowledge on EKG measurements and waveforms! This quiz covers the details of EKG box durations, the electrical pathway of the heart, and the significance of various waveforms. Enhance your understanding of essential medical terminology related to the heart's electrical activity.

    More Like This

    EKG Chapter 4 Flashcards
    14 questions

    EKG Chapter 4 Flashcards

    VeritableSparkle avatar
    VeritableSparkle
    Measuring QRS Complex Flashcards
    6 questions

    Measuring QRS Complex Flashcards

    StylishPeach4517 avatar
    StylishPeach4517
    EKG Rhythms Overview
    17 questions

    EKG Rhythms Overview

    ReputableTangent4657 avatar
    ReputableTangent4657
    EKG Technician Practice Test Flashcards
    85 questions

    EKG Technician Practice Test Flashcards

    WellBacklitJasmine avatar
    WellBacklitJasmine
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser