Question 1

Patients with a history of V-fib may be treated with an ICD.

Accepted Answer

A) True 
 B)False

Question 2

The SA node stimulates both atria to depolarize at the same time.

Accepted Answer

A) True 
 B)False

Question 3

Which cardiac diagnostic tool requires the patient to exercise during the procedure?

Accepted Answer

A)  Stress test 
B)  Heart scan 
C)  Holter monitor 
D)  Event monitor 
A)  Stress test 
B)  Heart scan 
C)  Holter monitor 
D)  Event monitor

Question 4

PVCs are recorded when the ventricles depolarize before a P wave.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following leads is placed in the fifth intercostal space, at the left midclavicular line?

Accepted Answer

A)  V1 
B)  V2 
C)  V3 
D)  V4 
E)  V5 
A)  V1 
B)  V2 
C)  V3 
D)  V4 
E)  V5

Question 6

The __________ control(s) the rate of heart contraction by initiating contractions 60 to 100 times a minute.

Accepted Answer

A)  AV node 
B)  SA node 
C)  bundle of His 
D)  Purkinje fibers 
A)  AV node 
B)  SA node 
C)  bundle of His 
D)  Purkinje fibers

Question 7

Electron beam tomography helps screen for cardiac risk by

Accepted Answer

A)  determining the extent of MI damage. 
B)  assessing the amount of calcium in the coronary arteries. 
C)  measuring the potassium levels in the heart muscle. 
D)  determining the strength of the myocardial wall. 
A)  determining the extent of MI damage. 
B)  assessing the amount of calcium in the coronary arteries. 
C)  measuring the potassium levels in the heart muscle. 
D)  determining the strength of the myocardial wall.

Question 8

The precordial, or chest, leads are __________ and are designated V1, V2, V3, V4, V5, and V6.

Accepted Answer

unipolar
The precord

Question 9

Which of the following is the most critical, life-threatening arrhythmia that can quickly result in death if not treated?

Accepted Answer

A)  Atrial arrhythmia 
B)  Ventricular tachycardia 
C)  Ventricular fibrillation 
D)  Sinus arrhythmia 
E)  Biochemical arrhythmia 
A)  Atrial arrhythmia 
B)  Ventricular tachycardia 
C)  Ventricular fibrillation 
D)  Sinus arrhythmia 
E)  Biochemical arrhythmia

Question 10

The P wave occurs during the contraction of the __________ and shows the beginning cardiac depolarization.

Accepted Answer

atria
The P wave occurs during

Exam 42: Principles of Electrocardiography

Patients with a history of V-fib may be treated with an ICD.

The SA node stimulates both atria to depolarize at the same time.

Which cardiac diagnostic tool requires the patient to exercise during the procedure?

PVCs are recorded when the ventricles depolarize before a P wave.

Which of the following leads is placed in the fifth intercostal space, at the left midclavicular line?

The __________ control(s) the rate of heart contraction by initiating contractions 60 to 100 times a minute.

Electron beam tomography helps screen for cardiac risk by

The precordial, or chest, leads are __________ and are designated V1, V2, V3, V4, V5, and V6.

Which of the following is the most critical, life-threatening arrhythmia that can quickly result in death if not treated?

The P wave occurs during the contraction of the __________ and shows the beginning cardiac depolarization.

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

Filters

The precordial, or chest, leads are __________ and are designated V₁, V₂, V₃, V₄, V₅, and V₆.