Deck 6: Electrocardiogram Basics

Question 1

What type of ECG test is completed while the patient is exercising using the ECG machine and a treadmill or stationary exercise bike?

A) STAT
B) Stress
C) Holter
D) F ive lead

Answer 1

Stress

Question 2

Which of the following is a function of an ECG?

A) To measure cardiac muscle hypertrophy
B) To identify cardiac output
C) To measure the mechanical contraction of the heart
D) To detect previous myocardial events

Answer 2

To detect previous myocardial events

Question 3

According to the North American limb lead color code, what color is used for the left leg (LL)?

A) Red
B) White
C) Green
D) Black

Answer 3

Red

Question 4

What is the only lead where it is acceptable to place the electrode over a bone?

A) Lead V3
B) Lead V2
C) Lead V4
D) Lead V1

Question 5

What are leads called that carry no current?

A) Bipolar
B) Depolarized
C) Unipolar
D) Ground

Question 6

Which of the following means that the health care practitioner has discussed the procedure, the risks, and the benefits of the ECG and allowed the patient to clarify any questions?

A) Implied consent
B) Necessary consent
C) Informed consent
D) Legal consent

Question 7

Why are ECG electrodes attached to the skin?

A) To help with the conduction of the sound
B) To measure heart muscle activity
C) To transfer the sound
D) To capture any patient events

Question 8

All six limb leads view the heart's electrical activity from the anterior to the posterior axis of the ______________.

A) hexaxial view
B) coronal plane
C) transverse plane
D) horizontal plane

Question 9

___________ the ECG procedure is very important for health care reimbursement.

A) Documenting
B) Recording
C) Completing
D) Analyzing

Question 10

What does t he five lead ECG primarily diagnose?

A) Chest tightness
B) Ventricular arrhythmias
C) Ventricular dysrhythmias
D) Enlargement of one side of the heart

Question 11

The three lead ECG uses only which of the following lead combinations?

A) Right and left arm leads and right leg lead
B) Right and left arm leads and left leg lead
C) Right arm lead and right and left leg leads
D) Left arm lead and right and left leg leads

Question 12

What is the purpose of an electrocardiogram?

A) To capture any heart irregularities
B) To measure heart muscle activity
C) To capture any arrhythmias
D) To reduce electrical interference from outside of the body

Question 13

In placing precordial leads, be sure to affix all the electrodes on the left side of the sternum with the exception of which lead?

A) Lead V3
B) Lead V4
C) Lead V2
D) Lead V1

Question 14

According to the North American limb lead color code, what color is used for the right arm (RA)?

A) Red
B) Green
C) Black
D) White

Question 15

What lead is orientated toward the left ventricle's inferior wall?

A) aVR lead
B) aVL lead
C) aVF lead
D) aV lead

Question 16

Which of the following can be made of foam, cloth, or wet gel and come in various sizes from neonate, infant, pediatric, and adult?

A) Electrodes
B) Leads
C) Cables
D) Clips

Question 17

Using the three lead ECG for monitoring can detect _________________.

A) cardiac muscle hypertrophy
B) artifacts
C) serious arrhythmias
D) cardiac output

Question 18

The augmented limb leads give views of the heart from what view?

A) Transverse plane
B) Coronal
C) Hexaxial
D) Anterior wall

Question 19

When would informed consent occur?

A) When a patient is brought into a medical facility for treatment
B) When the patient cannot provide written consent
C) In a non-emergency clinical situation
D) In a medical emergency

Question 20

The electrode for what lead is placed on the right side of the sternum at the 4^th intercostal space?

A) Lead V3
B) Lead V4
C) Lead V1
D) Lead V2

Question 21

A lead that records the current in only one direction is called a _________ lead.

A) bipolar
B) ground
C) unipolar
D) one dimensional

Question 22

On a normal ECG, the electrical current in Leads I, II, and III are all moving in what direction?

A) Upward
B) Left
C) Downward
D) Right

Question 23

What type of ECG is obtained with a 24-48 hour monitoring ECG machine?

A) Differential
B) Resting
C) Holter
D) Stress

Question 24

Which precordial lead provides a transverse plane view of the interventricular septum of the heart?

A) Lead V4
B) Lead V3
C) Lead V1
D) Lead V2

Question 25

A(n) __________ view means that the view of a particular wall can be viewed from more than one angle or that additional lead views will provide alternative views when a heart injury is suspected.

A) frontal
B) reciprocal
C) hexaxial
D) precordial vector

Question 26

A ___________ is a graphical record which is made up of lines showing the direction and strength of electrical forces.

A) vector
B) diary of events
C) monitor
D) doctrine

Question 27

Which of the following is the first step in patient preparation?

A) Prepare for the ECG by first gathering your supplies and preparing the machine
B) Identify yourself
C) Obtaining proper patient consent
D) Review with the patient how the test is performed

Question 28

Where is precordial Lead V4 positioned?

A) In the 5^th intercostal space along a point of reference called the mid-clavicular line
B) On the chest opposite of the V1 electrode
C) On the right side of the sternum in the 4^th intercostal space of the ribs
D) In the 5^th intercostal space at a point of reference called the left anterior axillary line

Question 29

What bone(s) goes straight down the middle of the chest?

A) Collar
B) Ribs
C) Clavicle
D) Sternum

Question 30

What limb lead shows the potential difference between the left leg and left arm?

A) Lead II
B) Lead V3
C) Lead III
D) Lead I

Question 31

Which of the following are usually specifically identified by color and two or three letters which identify the location to place the electrodes?

A) Clips
B) Cables
C) Leads
D) Pads

Question 32

What is the purpose of the grounding electrode?

A) To capture any heart irregularities
B) To capture any arrhythmias
C) To measure heart muscle activity
D) To reduce electrical interference from outside of the body

Question 33

On an ECG, what measures the direction and intensity of voltage being discharged by the heart at a specific time?

A) Leads
B) Clips
C) Cables
D) Electrodes

Question 34

All six precordial leads are considered _____________leads.

A) ground
B) unipolar augmented
C) bipolar
D) positive unipolar

Question 35

Which precordial lead provides a view of the anterior wall of the left ventricle from the transverse plane?

A) Lead V3
B) Lead V2
C) Lead V4
D) Lead V1

Question 36

The first three limb leads are identified as Lead I, Lead II, and Lead III and are all what type of leads?

A) Augmented
B) Bipolar
C) Ground
D) Unipolar

Question 37

How many leads does the Holter monitor contain?

A) 6
B) 12
C) 3
D) 5

Question 38

Electrodes have a shelf life of approximately how many years?

A) Five
B) Two
C) One
D) Ten

Question 39

The precordial leads are also called __________ leads.

A) vector
B) chest
C) central terminal
D) transverse

Question 40

What type of leads provide three views from a central point of the heart but only two of the views are of a heart wall?

A) Modified leads
B) Augmented leads
C) Standard limb leads
D) Precordial leads