Question 1

Which of the following represents the time it takes for the ventricles to contract and recover, or repolarize?

Accepted Answer

A)  P-R interval 
B)  S-T interval 
C)  Q-T interval 
D)  U wave 
E)  QRS complex 
A)  P-R interval 
B)  S-T interval 
C)  Q-T interval 
D)  U wave 
E)  QRS complex

Question 2

The type of echocardiography in which the speed and direction of blood flow through the heart can be assessed is ________ echocardiography.

Accepted Answer

The answer of The type of echocardiography in which the...

Question 3

Which of the following results in a flat line on the ECG tracing?

Accepted Answer

A)  Poor skin preparation 
B)  Dirty electrodes 
C)  Detached/loose wire 
D)  Muscle movement 
E)  Electrical interference 
A)  Poor skin preparation 
B)  Dirty electrodes 
C)  Detached/loose wire 
D)  Muscle movement 
E)  Electrical interference

Question 4

Which of the following is appropriate when preparing the room and equipment for an electrocardiogram?

Accepted Answer

A)  Select a room in which all electrical equipment is turned off 
B)  Perform the procedure in an X-ray department 
C)  Place the patient on a metal table 
D)  Set the room's temperature control to a very cool setting 
E)  Check the ECG paper after preparing the patient 
A)  Select a room in which all electrical equipment is turned off 
B)  Perform the procedure in an X-ray department 
C)  Place the patient on a metal table 
D)  Set the room's temperature control to a very cool setting 
E)  Check the ECG paper after preparing the patient

Question 5

Calibration of a spirometer requires the use of a standardized measuring instrument called a(n) calibration ________ and should provide a reading on the spirometer within 3% of the stated volume.

Accepted Answer

The answer of Calibration of a spirometer requires the use...

Question 6

-What is the arrhythmia pictured here?

Accepted Answer

A)  Atrial fibrillation 
B)  PVCs 
C)  Ventricular fibrillation 
D)  Bundle branch block 
E)  Cardiac arrest 
A)  Atrial fibrillation 
B)  PVCs 
C)  Ventricular fibrillation 
D)  Bundle branch block 
E)  Cardiac arrest

Question 7

Which of the following is a life-threatening dysrhythmia that results in no cardiac output?

Accepted Answer

A)  Atrial fibrillation 
B)  PVCs 
C)  Ventricular fibrillation 
D)  Bundle branch block 
E)  Ventricular tachycardia 
A)  Atrial fibrillation 
B)  PVCs 
C)  Ventricular fibrillation 
D)  Bundle branch block 
E)  Ventricular tachycardia

Question 8

The impulse that travels through both ventricles is the ____.

Accepted Answer

A)  R wave 
B)  Q wave 
C)  S wave 
D)  P wave 
E)  T wave 
A)  R wave 
B)  Q wave 
C)  S wave 
D)  P wave 
E)  T wave

Question 9

Which of the following refers to the contraction of the ventricles following depolarization?

Accepted Answer

A)  QRS complex 
B)  T wave 
C)  Q-T interval 
D)  S-T segment 
E)  P wave 
A)  QRS complex 
B)  T wave 
C)  Q-T interval 
D)  S-T segment 
E)  P wave

Question 10

Electrical impulse sensors placed on the body that detect and record the electrical activity of the heart are ________.

Accepted Answer

The answer of Electrical impulse sensors placed on the body...

Question 11

The cardiac ________ is regulated by specialized tissues in the heart wall that transmit electrical impulses and cause the heart muscle to contract and relax.

Accepted Answer

The answer of The cardiac ________ is regulated by specialized...

Question 12

The electrical impulse that initiates a chain reaction resulting in contraction is ________.

Accepted Answer

The answer of The electrical impulse that initiates a chain...

Question 13

-The urgent care center where you work is being remodeled, and the room usually used for obtaining ECGs is currently unavailable. The ECG equipment has been moved around the corner to the room next to the X-ray room. When you begin your first patient ECG of the day, the tracing looks as shown in the figure. What problem is present and how can you fix it?

Accepted Answer

A)  Extraneous marks; avoid using paper clips on the graph paper 
B)  Somatic interference; ask the patient to be very still while you record the ECG 
C)  Wandering baseline; check and reconnect loose leads 
D)  Flat line; check for crossed wires or loose leads 
E)  AC interference; move the ECG equipment to a room farther from other electric equipment 
A)  Extraneous marks; avoid using paper clips on the graph paper 
B)  Somatic interference; ask the patient to be very still while you record the ECG 
C)  Wandering baseline; check and reconnect loose leads 
D)  Flat line; check for crossed wires or loose leads 
E)  AC interference; move the ECG equipment to a room farther from other electric equipment

Question 14

The ________ conduct electrical impulses down both sides of the interventricular septum.

Accepted Answer

The answer of The ________ conduct electrical impulses down both...

Question 15

An electrocardiography device that includes a small cassette or microchip recorder and records the heart rhythm over a 24-hour period is a(n) ________ monitor.

Accepted Answer

The answer of An electrocardiography device that includes a small...

Question 16

The medical assistant performs a pulse oximetry on a patient that results in a low blood oxygen reading. The term that the medical assistant will document in the patient's record for this low blood oxygen is ________.

Accepted Answer

The answer of The medical assistant performs a pulse oximetry...

Question 17

Pulmonary function tests are useful in monitoring which condition?

Accepted Answer

A)  Myocardial infarction 
B)  Chronic obstructive pulmonary disease 
C)  Angina pectoris 
D)  Arrhythmias 
E)  Congestive heart failure 
A)  Myocardial infarction 
B)  Chronic obstructive pulmonary disease 
C)  Angina pectoris 
D)  Arrhythmias 
E)  Congestive heart failure

Question 18

Which of the following is a measurement taken to determine the amount of air that can be quickly forced from the lungs?

Accepted Answer

A)  Maximal voluntary ventilation 
B)  Tidal volume 
C)  Forced vital capacity 
D)  Peak expiratory flow rate 
E)  Peak flow zone 
A)  Maximal voluntary ventilation 
B)  Tidal volume 
C)  Forced vital capacity 
D)  Peak expiratory flow rate 
E)  Peak flow zone

Question 19

Which of the following is an erroneous mark or defect that may appear on an ECG strip?

Accepted Answer

A)  Electrolyte 
B)  Deflection 
C)  Stylus 
D)  Lead 
E)  Artifact 
A)  Electrolyte 
B)  Deflection 
C)  Stylus 
D)  Lead 
E)  Artifact

Question 20

Which test is utilized to measure the heart's conduction system during exercise, when the demand for oxygen is increased?

Accepted Answer

A)  Holter monitoring 
B)  Electrocardiography 
C)  Pulmonary function test 
D)  Stress testing 
E)  Encephalography 
A)  Holter monitoring 
B)  Electrocardiography 
C)  Pulmonary function test 
D)  Stress testing 
E)  Encephalography

Exam 49: Electrocardiography and Pulmonary Function Testing

Which of the following represents the time it takes for the ventricles to contract and recover, or repolarize?

The type of echocardiography in which the speed and direction of blood flow through the heart can be assessed is ________ echocardiography.

Which of the following results in a flat line on the ECG tracing?

Which of the following is appropriate when preparing the room and equipment for an electrocardiogram?

Calibration of a spirometer requires the use of a standardized measuring instrument called a(n) calibration ________ and should provide a reading on the spirometer within 3% of the stated volume.

-What is the arrhythmia pictured here?

Which of the following is a life-threatening dysrhythmia that results in no cardiac output?

The impulse that travels through both ventricles is the ____.

Which of the following refers to the contraction of the ventricles following depolarization?

Electrical impulse sensors placed on the body that detect and record the electrical activity of the heart are ________.

The cardiac ________ is regulated by specialized tissues in the heart wall that transmit electrical impulses and cause the heart muscle to contract and relax.

The electrical impulse that initiates a chain reaction resulting in contraction is ________.

The ________ conduct electrical impulses down both sides of the interventricular septum.

An electrocardiography device that includes a small cassette or microchip recorder and records the heart rhythm over a 24-hour period is a(n) ________ monitor.

The medical assistant performs a pulse oximetry on a patient that results in a low blood oxygen reading. The term that the medical assistant will document in the patient's record for this low blood oxygen is ________.

Pulmonary function tests are useful in monitoring which condition?

Which of the following is a measurement taken to determine the amount of air that can be quickly forced from the lungs?

Which of the following is an erroneous mark or defect that may appear on an ECG strip?

Which test is utilized to measure the heart's conduction system during exercise, when the demand for oxygen is increased?

Introduction to Medical Assisting

Healthcare and the Healthcare Team

Professionalism and Success

Interpersonal Communication

Legal and Ethical Issues

Infection Control Fundamentals

Safety and Patient Reception

Office Equipment and Supplies

Examination and Treatment Areas

Written and Electronic Communication

Medical Records and Documentation

Electronic Health Records

Managing Medical Records

Telephone Techniques

Patient Education

Schedule Management

Insurance Billing

Diagnostic Coding

Procedure Coding

Patient Collections and Financial Management

Organization of the Body

The Integumentary System

The Skeletal System

The Muscular System

The Cardiovascular System

The Blood

The Lymphatic and Immune Systems

The Respiratory System

The Nervous System

The Urinary System

The Reproductive Systems

The Digestive System

The Endocrine System

Special Senses

Infection Control Practices

Patient Interview and History

Vital Signs and Measurements

Assisting With a General Physical Exam

Assisting in Reproductive and Urinary Specialties

Assisting in Pediatrics

Assisting in Geriatrics

Assisting in Other Medical Specialties

Assisting in Eye and Ear Care

Assisting in Minor Surgery

Orientation to the Lab

Microbiology and Disease

Processing and Testing Urine and Stool Samples

Collecting, Processing, and Testing Blood Specimens

Diagnostic Imaging

Principles of Pharmacology

Math and Dosage Calculations

Medication Administration

Physical Therapy and Rehabilitation

Nutrition and Health

Practice Management

Emergency Preparedness

Preparing for the World of Work

Filters