Question 1

Patients should not hold their breath during the brief seconds necessary to record an ECG.

Accepted Answer

A) True 
 B)False

Question 2

ECG paper has horizontal and vertical lines at __________ intervals.

Accepted Answer

1-mm
ECG paper has h

Question 3

If the ECG recording appears with the baseline rising and falling, the medical assistant should

Accepted Answer

A)  check for nearby electric appliances. 
B)  check electrode attachment. 
C)  continue recording the ECG. 
D)  check the cable connections to the electrodes. 
A)  check for nearby electric appliances. 
B)  check electrode attachment. 
C)  continue recording the ECG. 
D)  check the cable connections to the electrodes.

Question 4

If a patient has dyspnea or orthopnea, which of the following positions is acceptable for performing an electrocardiogram?

Accepted Answer

A)  Semi-supine position 
B)  Semi-Fowler's position 
C)  Prone position 
D)  Dorsal recumbent position 
E)  None of the above 
A)  Semi-supine position 
B)  Semi-Fowler's position 
C)  Prone position 
D)  Dorsal recumbent position 
E)  None of the above

Question 5

Which of the following is not an immediate treatment for a heart attack?

Accepted Answer

A)  Administration of nasal oxygen 
B)  Sublingual nitroglycerin 
C)  Non-aspirin analgesic 
D)  Early administration of thrombolytic agents 
A)  Administration of nasal oxygen 
B)  Sublingual nitroglycerin 
C)  Non-aspirin analgesic 
D)  Early administration of thrombolytic agents

Question 6

Which of the following is referred to as sinus bradycardia?

Accepted Answer

A)  A heart rate within the range of 60 to 80 beats per minute 
B)  A heart rate below 60 beats per minute 
C)  A heart rate above 100 beats per minute 
D)  An irregular cardiac rhythm 
A)  A heart rate within the range of 60 to 80 beats per minute 
B)  A heart rate below 60 beats per minute 
C)  A heart rate above 100 beats per minute 
D)  An irregular cardiac rhythm

Question 7

A patient in V-fib does not have a pulse.

Accepted Answer

A) True 
 B)False

Question 8

A diary of daily activities is part of the procedure for performing which of the following?

Accepted Answer

A)  Heart scan 
B)  Stress test 
C)  Holter monitor 
D)  Pacemaker reading 
A)  Heart scan 
B)  Stress test 
C)  Holter monitor 
D)  Pacemaker reading

Question 9

The first three leads recorded are called the standard, or __________, limb leads, because they each use two limb electrodes to record the heart's electrical activity.

Accepted Answer

bipolar
The first three leads

Question 10

The electrodes of the ECG carry cardiac electrical impulses into the machine, where they are magnified by an amplifier.

Accepted Answer

A) True 
 B)False

Question 11

Transverse plane leads on a standard ECG include which of the following?

Accepted Answer

A)  Lead I 
B)  Lead II 
C)  Lead III 
D)  Leads V1 to V6 
E)  VR, VL, and VF 
A)  Lead I 
B)  Lead II 
C)  Lead III 
D)  Leads V1 to V6 
E)  VR, VL, and VF

Question 12

The electrical activity of the heart is initiated in specialized tissue called the __________, which is located in the superior-posterior wall of the right atrium.

Accepted Answer

SA node
The electrical activit

Question 13

Which of the following may be seen on an ECG when the pathway of the electrical charge is normal, but the rate or rhythm of the heartbeat is altered?

Accepted Answer

A)  Biochemical arrhythmia 
B)  Atrial arrhythmia 
C)  Ventricular arrhythmia 
D)  Sinus arrhythmia 
E)  Atrial flutter 
A)  Biochemical arrhythmia 
B)  Atrial arrhythmia 
C)  Ventricular arrhythmia 
D)  Sinus arrhythmia 
E)  Atrial flutter

Question 14

Bradycardia is defined as

Accepted Answer

A)  a faster than normal heart rate. 
B)  a slower than normal heart rate. 
C)  chest pain. 
D)  an irregular heartbeat. 
A)  a faster than normal heart rate. 
B)  a slower than normal heart rate. 
C)  chest pain. 
D)  an irregular heartbeat.

Question 15

The standard speed for an ECG recording is 50 mm/sec.

Accepted Answer

A) True 
 B)False

Question 16

One of the most specific ECG changes that occurs in patients with an MI is elevated T waves.

Accepted Answer

A) True 
 B)False

Question 17

Tachycardia is defined as

Accepted Answer

A)  a faster than normal heart rate. 
B)  a condition in which the patient has difficulty breathing when lying down. 
C)  dizzy spells. 
D)  a condition in which the heartbeat is irregular. 
A)  a faster than normal heart rate. 
B)  a condition in which the patient has difficulty breathing when lying down. 
C)  dizzy spells. 
D)  a condition in which the heartbeat is irregular.

Question 18

The T wave indicates ventricular recovery, or __________, of the ventricles.

Accepted Answer

repolarization
The T

Question 19

The skin is an excellent conductor of electrical activity.

Accepted Answer

A) True 
 B)False

Question 20

Preparation of a patient for an ECG includes

Accepted Answer

A)  placing the electrodes over bony prominences on the arms and legs. 
B)  making sure the bed is pushed against the wall to stabilize the unit. 
C)  placing the ground electrode at V6. 
D)  instructing female patients to remove their bra and pantyhose. 
A)  placing the electrodes over bony prominences on the arms and legs. 
B)  making sure the bed is pushed against the wall to stabilize the unit. 
C)  placing the ground electrode at V6. 
D)  instructing female patients to remove their bra and pantyhose.

Exam 42: Principles of Electrocardiography

Patients should not hold their breath during the brief seconds necessary to record an ECG.

ECG paper has horizontal and vertical lines at __________ intervals.

If the ECG recording appears with the baseline rising and falling, the medical assistant should

If a patient has dyspnea or orthopnea, which of the following positions is acceptable for performing an electrocardiogram?

Which of the following is not an immediate treatment for a heart attack?

Which of the following is referred to as sinus bradycardia?

A patient in V-fib does not have a pulse.

A diary of daily activities is part of the procedure for performing which of the following?

The first three leads recorded are called the standard, or __________, limb leads, because they each use two limb electrodes to record the heart's electrical activity.

The electrodes of the ECG carry cardiac electrical impulses into the machine, where they are magnified by an amplifier.

Transverse plane leads on a standard ECG include which of the following?

The electrical activity of the heart is initiated in specialized tissue called the __________, which is located in the superior-posterior wall of the right atrium.

Which of the following may be seen on an ECG when the pathway of the electrical charge is normal, but the rate or rhythm of the heartbeat is altered?

Bradycardia is defined as

The standard speed for an ECG recording is 50 mm/sec.

One of the most specific ECG changes that occurs in patients with an MI is elevated T waves.

Tachycardia is defined as

The T wave indicates ventricular recovery, or __________, of the ventricles.

The skin is an excellent conductor of electrical activity.

Preparation of a patient for an ECG includes

Competency-Based Education and the Medical Assistant Student

The Medical Assistant and the Healthcare Team

Professional Behavior in the Workplace

Therapeutic Communications

Medicine and Law

Medicine and Ethics

Technology and Written Communication in the Medical Office

Telephone Techniques

Scheduling Appointments and Patient Processing

Daily Operations in the Ambulatory Care Setting

The Health Record

Basics of Diagnostic Coding

Basics of Procedural Coding

Basics of Health Insurance

Medical Billing and Reimbursement

Patient Accounts, Collections, and Practice Management

Banking Services and Procedures

Supervision and Human Resources Management

Medical Practice Marketing and Customer Service

Infection Control

Patient Assessment

Patient Education

Nutrition and Health Promotion

Vital Signs

Assisting with the Primary Physical Examination

Principles of Pharmacology

Pharmacology Math

Administering Medications

Safety and Emergency Practices

Assisting in Ophthalmology and Otolaryngology

Assisting in Dermatology

Assisting in Gastroenterology

Assisting in Urology and Male Reproduction

Assisting in Obstetrics and Gynecology

Assisting in Pediatrics

Assisting in Orthopedic Medicine

Assisting in Neurology and Mental Health

Assisting in Endocrinology

Assisting in Pulmonary Medicine

Assisting in Cardiology

Assisting in Geriatrics

Assisting with Diagnostic Imaging

Assisting in the Clinical Laboratory

Assisting in the Analysis of Urine

Assisting in Blood Collection

Assisting in the Analysis of Blood

Assisting in Microbiology and Immunology

Surgical Supplies and Instruments

Surgical Asepsis and Assisting with Surgical Procedures

Career Development and Life Skills

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