Question 1

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 2

Which statement is true about NSR?

Accepted Answer

A)  It is a regular heart rate that falls within the average range of 60 to 80 bpm. 
B)  It is a heart rate less than 60 bpm. 
C)  It is a heart rate of greater than 100 bpm. 
D)  It is an irregular heart rate that falls within the average range of 60 to 80 bpm. 
A)  It is a regular heart rate that falls within the average range of 60 to 80 bpm. 
B)  It is a heart rate less than 60 bpm. 
C)  It is a heart rate of greater than 100 bpm. 
D)  It is an irregular heart rate that falls within the average range of 60 to 80 bpm.

Question 3

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 4

The image created on the ECG paper is made by the

Accepted Answer

A)  heated stylus. 
B)  ink cartridge. 
C)  lead wires. 
D)  felt-tipped pen in the machine. 
A)  heated stylus. 
B)  ink cartridge. 
C)  lead wires. 
D)  felt-tipped pen in the machine.

Question 5

If the ECG recording appears as a series of small,uniform spikes in the baseline,the medical assistant should

Accepted Answer

A)  check for nearby electric appliances. 
B)  ask the patient to lie still. 
C)  help the patient relax and stay warm. 
D)  check the cable connection to the electrodes. 
A)  check for nearby electric appliances. 
B)  ask the patient to lie still. 
C)  help the patient relax and stay warm. 
D)  check the cable connection to the electrodes.

Question 6

The AV node sends the electric impulse through the __________,which stimulates the right and left ventricular walls.

Accepted Answer

The answer of The AV node sends the electric impulse...

Question 7

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 8

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

Accepted Answer

A) True 
 B)False

Question 9

The patient must be placed in the supine position for an ECG,even if the person has the symptoms of dyspnea and orthopnea.

Accepted Answer

A) True 
 B)False

Question 10

What information should be documented on the ECG strip?

Accepted Answer

The ECG strip should have the patient's

Question 11

A monitor that a patient wears for 24 hours is called a(n)

Accepted Answer

A)  12-lead. 
B)  Holter. 
C)  Halter. 
D)  echocardiogram. 
A)  12-lead. 
B)  Holter. 
C)  Halter. 
D)  echocardiogram.

Question 12

Digitalis toxicity may cause specific ECG changes.

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

Which of the following artifacts appears as a series of uniform small spikes on the ECG paper?

Accepted Answer

A)  Somatic tremor 
B)  Alternating current interference 
C)  Interrupted baseline 
D)  Wandering baseline 
A)  Somatic tremor 
B)  Alternating current interference 
C)  Interrupted baseline 
D)  Wandering baseline

Question 15

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 16

Which deflection from the baseline represents the repolarization of the ventricles?

Accepted Answer

A)  P wave 
B)  T wave 
C)  ST segment 
D)  QRS complex 
A)  P wave 
B)  T wave 
C)  ST segment 
D)  QRS complex

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

Describe the placement of each precordial lead.

Accepted Answer

•	V1—The electrode is placed in the four

Question 19

Systole is defined as

Accepted Answer

A)  the contraction of the chambers of the heart. 
B)  the relaxation of the chambers of the heart. 
C)  a pounding or racing heart. 
D)  None of the above 
A)  the contraction of the chambers of the heart. 
B)  the relaxation of the chambers of the heart. 
C)  a pounding or racing heart. 
D)  None of the above

Question 20

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

Exam 25: Principles of Electrocardiography

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

Which statement is true about NSR?

Which of the following is referred to as sinus bradycardia?

The image created on the ECG paper is made by the

If the ECG recording appears as a series of small,uniform spikes in the baseline,the medical assistant should

The AV node sends the electric impulse through the __________,which stimulates the right and left ventricular walls.

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

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

The patient must be placed in the supine position for an ECG,even if the person has the symptoms of dyspnea and orthopnea.

What information should be documented on the ECG strip?

A monitor that a patient wears for 24 hours is called a(n)

Digitalis toxicity may cause specific ECG changes.

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

Which of the following artifacts appears as a series of uniform small spikes on the ECG paper?

Electron beam tomography helps screen for cardiac risk by

Which deflection from the baseline represents the repolarization of the ventricles?

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

Describe the placement of each precordial lead.

Systole is defined as

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

Competency-Based Education and the Medical Assistant Student

The Health Record

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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