Cardiac and Respiratory Testing Basics
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Questions and Answers

What is the purpose of reviewing the anatomy and physiology of the heart and respiratory system for a medical assistant?

  • To perform administrative tasks in a physician's office
  • To assist in surgical procedures
  • To manage patient billing
  • To correctly perform cardiac and respiratory testing (correct)

    • Which procedure involves creating a graphic pattern from the electrical impulses generated within the heart as it pumps?

  • Stress testing
  • Electrocardiography (correct)
  • Holter monitor
  • Pulmonary function testing

    • Which instrument is introduced in the chapter and used to administer an electrocardiogram?

  • Pulmonary function testing machine
  • Electrocardiograph (correct)
  • Spirometer
  • Holter monitor

    • What is the purpose of administering a Holter monitor?

    <p>To record heart's electrical activity over a period of time</p> Signup and view all the answers

    Which procedure involves measuring lung capacity and peak flow?

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

    When might a medical assistant be required to perform pulmonary function testing?

    <p>As part of a general examination or physical</p> Signup and view all the answers

    Which medical test measures and evaluates a patient’s lung capacity and volume?

    <p>Pulmonary function tests (PFTs)</p> Signup and view all the answers

    What does electrocardiography measure and record?

    <p>Heart rate and rhythm</p> Signup and view all the answers

    What is the essential understanding required when performing electrocardiography?

    <p>Understanding the basics of the conduction system and how it appears on an ECG tracing</p> Signup and view all the answers

    What does depolarization in the cardiac cell result in?

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

    What is repolarization followed by?

    <p>Resting and rebuilding of electrical energy</p> Signup and view all the answers

    What is the purpose of electrocardiography?

    <p>To measure and record the heart's electrical activity</p> Signup and view all the answers

    What does electrocardiography measure with electrodes placed on specific areas on the surface of the body?

    <p>Heart’s electrical activity</p> Signup and view all the answers

    What is the condition of having two separate poles, one positive and the other negative?

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

    What causes the heart to beat?

    <p>Electrical currents</p> Signup and view all the answers

    What is measured with an electrocardiograph?

    <p>The heart’s electrical activity</p> Signup and view all the answers

    What is the purpose of an electrocardiogram?

    <p>To measure and record electrical impulses in the heart</p> Signup and view all the answers

    When might a medical assistant be required to use a Holter monitor?

    <p>To monitor a patient's heart over an extended period of time</p> Signup and view all the answers

    What procedure involves creating a graphic pattern from the electrical impulses generated within the heart as it pumps?

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

    What is the purpose of reviewing the anatomy and physiology of the heart and respiratory system for a medical assistant?

    <p>To correctly perform cardiac and respiratory testing</p> Signup and view all the answers

    What does pulmonary function testing measure and evaluate?

    <p>Lung capacity and peak flow</p> Signup and view all the answers

    Which instrument is used to measure and record the electrical impulses in the heart?

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

    What does an electrocardiograph measure and record?

    <p>The heart's electrical activity, including abnormalities in its rhythm</p> Signup and view all the answers

    When might pulmonary function tests (PFTs) be performed?

    <p>To detect and diagnose pulmonary problems and monitor respiratory disorders</p> Signup and view all the answers

    What is the purpose of reviewing the basics of the conduction system and how it appears on an ECG tracing?

    <p>To understand how electrocardiography works when performing an ECG</p> Signup and view all the answers

    What happens during repolarization in the cardiac myocytes?

    <p>Cardiac cells are resting and rebuilding the electrical energy that was released during depolarization</p> Signup and view all the answers

    What is the condition of having two separate poles, one positive and the other negative?

    <p>Polarity in the conduction system</p> Signup and view all the answers

    What is the purpose of measuring and evaluating a patient's lung capacity and volume using pulmonary function tests (PFTs)?

    <p>To detect and diagnose pulmonary problems and monitor certain respiratory disorders</p> Signup and view all the answers

    What produces an electrical current with each heartbeat?

    <p>Depolarization in the cardiac cells</p> Signup and view all the answers

    What is measured by electrodes placed on specific areas on the surface of the body during electrocardiography?

    <p>'Abnormalities in its rhythm' of the heart's electrical activity</p> Signup and view all the answers

    "During electrocardiography, what does depolarization cause in the cardiac cell?"

    <p>'Flash' of electrical energy within the cells of the heart</p> Signup and view all the answers

    "What is essential to understand when performing electrocardiography?"

    <p>'Basics' of the conduction system and how it appears on an ECG tracing</p> Signup and view all the answers

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