32 Questions
What is the purpose of reviewing the anatomy and physiology of the heart and respiratory system for a medical assistant?
To correctly perform cardiac and respiratory testing
Which procedure involves creating a graphic pattern from the electrical impulses generated within the heart as it pumps?
Electrocardiography
Which instrument is introduced in the chapter and used to administer an electrocardiogram?
Electrocardiograph
What is the purpose of administering a Holter monitor?
To record heart's electrical activity over a period of time
Which procedure involves measuring lung capacity and peak flow?
Spirometry
When might a medical assistant be required to perform pulmonary function testing?
As part of a general examination or physical
Which medical test measures and evaluates a patient’s lung capacity and volume?
Pulmonary function tests (PFTs)
What does electrocardiography measure and record?
Heart rate and rhythm
What is the essential understanding required when performing electrocardiography?
Understanding the basics of the conduction system and how it appears on an ECG tracing
What does depolarization in the cardiac cell result in?
Contraction
What is repolarization followed by?
Resting and rebuilding of electrical energy
What is the purpose of electrocardiography?
To measure and record the heart's electrical activity
What does electrocardiography measure with electrodes placed on specific areas on the surface of the body?
Heart’s electrical activity
What is the condition of having two separate poles, one positive and the other negative?
Polarity
What causes the heart to beat?
Electrical currents
What is measured with an electrocardiograph?
The heart’s electrical activity
What is the purpose of an electrocardiogram?
To measure and record electrical impulses in the heart
When might a medical assistant be required to use a Holter monitor?
To monitor a patient's heart over an extended period of time
What procedure involves creating a graphic pattern from the electrical impulses generated within the heart as it pumps?
Electrocardiography
What is the purpose of reviewing the anatomy and physiology of the heart and respiratory system for a medical assistant?
To correctly perform cardiac and respiratory testing
What does pulmonary function testing measure and evaluate?
Lung capacity and peak flow
Which instrument is used to measure and record the electrical impulses in the heart?
Electrocardiograph
What does an electrocardiograph measure and record?
The heart's electrical activity, including abnormalities in its rhythm
When might pulmonary function tests (PFTs) be performed?
To detect and diagnose pulmonary problems and monitor respiratory disorders
What is the purpose of reviewing the basics of the conduction system and how it appears on an ECG tracing?
To understand how electrocardiography works when performing an ECG
What happens during repolarization in the cardiac myocytes?
Cardiac cells are resting and rebuilding the electrical energy that was released during depolarization
What is the condition of having two separate poles, one positive and the other negative?
Polarity in the conduction system
What is the purpose of measuring and evaluating a patient's lung capacity and volume using pulmonary function tests (PFTs)?
To detect and diagnose pulmonary problems and monitor certain respiratory disorders
What produces an electrical current with each heartbeat?
Depolarization in the cardiac cells
What is measured by electrodes placed on specific areas on the surface of the body during electrocardiography?
'Abnormalities in its rhythm' of the heart's electrical activity
"During electrocardiography, what does depolarization cause in the cardiac cell?"
'Flash' of electrical energy within the cells of the heart
"What is essential to understand when performing electrocardiography?"
'Basics' of the conduction system and how it appears on an ECG tracing
Test your knowledge of cardiac and respiratory testing basics for medical assistants. Learn about the anatomy and physiology of the heart and respiratory system, as well as the use of electrocardiograph instruments.
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