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EKG CET Review #2

Total questions: 100

Worksheet time: 8hrs 20mins

Name
Class
Date
1.

What is the most common rhythm that could produce blood clots.

a)

Atrial fibrillation

b)

Wandering baseline

c)

Second Degree Heart Block

d)

None of these

2.

On an ECG, the P wave represents __________________________.

a)

Contraction of the Atria

b)

Contration of the Ventricle

c)

The pause at the AV node

d)

The impulse traveling through the bundle branches

3.

What is the term for rapid heartbeat?

a)

Angina Pectoris

b)

Fibrillations

c)

Tachycardia

d)

Ischemia

4.

The most accurate way to determine the rate of any rhythm strip is the

a)

Block Method (300, 150, 100, etc.)

b)

6 inch method (number of complexes between 6 inches)

c)

Counting complexes for 30 seconds and multiplying by 2

d)

Estimation Method

5.

When the electrical impulse originates from somewhere other than the SA node, it is said to be

a)

blanket firing

b)

rapid firing

c)

ectopic firing

d)

subdued firing

6.

Which of these represents an entire cardiac cycle?

a)

QRS complex

b)

P-R complex

c)

R-R interval

d)

QRST complex

7.

Which of these could cause sinus arrythmias?

a)

An inexperienced technician

b)

Changes in breathing

c)

A heart block

d)

Not winning Homecoming Queen

8.

Which of the following best describes this strip?

a)

Tachycardia

b)

Normal Sinus Rhythm

c)

Bradycardia

d)

Asystole

9.

Use the rule of 300 to determine approximate Heart Rate.

a)

300/6 = 50

b)

300/3.5 = 75

c)

300/2 = 150

d)

Note enough information.

10.

Which of the following best describes this strip?

a)

Tachycardia

b)

Normal Sinus Rhythm

c)

Bradycardia

d)

Asystole

11.

Use the rule of 300 to determine approximate Heart Rate.

a)

300/6 = 50

b)

300/3.5 = 75

c)

300/1.5 = 200

d)

Not enough information.

12.

Which of the following best describes this strip?

a)

Tachycardia

b)

Normal Sinus Rhythm

c)

Bradycardia

d)

Asystole

13.
Which letter(s) indicates the health of the ventricles?
a)
T-wave  
b)
S-T waves
c)
R wave 
d)
QRS
14.
Which letter(s) indicates the health of the atria?
a)
QRS
b)
P-Q wave
c)
P wave only 
d)
T wave
15.

If there is a flat P wave which structures in the heart are damaged?

a)

SA/AV node

b)

Bicuspid valve

c)

Bundle of His

d)

Purkinje fibers

16.
The place where the electrical current starts and is considered the heart's pacemaker:
a)
Sino-atrial node 
b)
right atrium
c)
atria-ventricular node 
d)
left ventricle
17.
The p-wave correlates with which event?
a)
atrium contraction /signals moving from SA node to AV node
b)
ventricle contraction
c)
ventricle repolarization
d)
both atrial and ventricle contraction
18.
The QRS-wave correlates with which event?
a)
atrium contraction /signals moving from SA node to AV node
b)
ventricle contraction
c)
ventricle repolarization
d)
both atrial and ventricle contraction
19.

What does depolarization result in?

a)

relaxation

b)

contraction

c)

repulsion

d)

attraction

20.

Which node is considered the "pacemaker" of the heart?

a)

SA

b)

AV

21.

Where are the Purkinje Fibers located?

a)

A

b)

B

c)

C

d)

D

22.

Blood enters the heart from the _______?

a)

Superior and inferior vena cava

b)

Bicuspid and Tricuspid

c)

aorta

d)

pulmonary artery

23.

The normal heart rhythm is called?

a)

Sinus brady

b)

ventricle fibrillation

c)

Normal sinus rhythm

d)

Junctional Rhytms

24.

Normal heart rate for an adult is?

a)

20 to 100/min

b)

40 to 120/min

c)

60 to 100/min

d)

20 to 60/min

25.

The SA Node is known as?

a)

Pacemaker

b)

gatekeeper

c)

ventricle

d)

cardiac muscle

26.

The SA Node generates impulses at?

a)

60-100 times per minute

b)

60-40 times per minute

c)

40-20 time per minute

d)

20-100 times per minutes

27.

which is the correct order?

a)

SA Node, AV Node, Bundle of His, Lt and Rt Bundle Branches, Purkinje Fibers

b)

AV Node, SA Node, Lt and Rt Bundle Branches, Bundle of His, Purkinje Fibers

c)

Bundle of His, Lt and Rt Bundle Branches, Bundles of His, Purkinje Fibers, AV Node, SA Node

d)

Purkinje Fibers, Bundle of His, AV Node, Lt and Rt Bundle Branches

28.

AV Node can fire at a rate of?

a)

60-100 times per minute

b)

40-60 times per minute

c)

40-20 times per minute

d)

60-20 times per minute

29.

The QRS complex is normally __________ seconds in duration

a)

0.06 to 0.10

b)

0.04 to 0.10

c)

0.08 to 0.12

d)

0.10 to 0.12

30.

the AV impulse is

a)

60-100

b)

40-60

c)

20-40

d)

30-70

31.

the impulse of SA node is

a)

60-100

b)

40-60

c)

20-40

d)

30-70

32.

the purkinje fibers impulse is

a)

60-100

b)

40-60

c)

20-40

d)

30-70

33.

The nurse is reviewing a patient’s electrocardiogram. Which wave should the nurse recognize as being the first positive wave in a normal cardiac cycle?

a)

P wave

b)

Q wave

c)

R wave

d)

S wave

34.

A patient is experiencing electrocardiogram changes. Which wave should the nurse recognize as representing ventricular repolarization?

a)

Q wave

b)

R wave

c)

S wave

d)

T wave

35.

After reviewing an electrocardiogram the nurse determines that an electrical impulse originated in a patient’s the sinoatrial node. What did the nurse see on this tracing?

a)

An upright T wave

b)

An inverted T wave

c)

A positive P wave before a QRS complex

d)

A negative P wave before a QRS complex

36.

The nurse is reviewing cardiac anatomy with a patient scheduled for pacemaker insertion. Where should the nurse identify the location of the sinus node for the patient?

a)

Left atrium

b)

Right atrium

c)

Left ventricle

d)

Right ventricle

37.

A patient has a normal heartbeat of 72 beats per minute. What area of the conduction system should the nurse consider as functioning normally in this patient?

a)

Bundle of His

b)

Sinoatrial node

c)

Purkinje’s fibers

d)

Atrioventricular node

38.

The nurse is determining the functioning of a patient’s sinoatrial node. How many times per minute should the nurse expect the node to normally fire?

a)

20 to 40

b)

25 to 55

c)

40 to 85

d)

60 to 100

39.

The nurse determines that a patient’s electrocardiogram is demonstrating normal sinus rhythm. What did the nurse observe to come to this conclusion? (Select all that apply.)

a)

Regular rhythm

b)

P wave before each QRS complex

c)

Wide QRS intervals

d)

Heart rate 83 beats per minute

40.

The nurse is analyzing a client’s electrocardiogram tracing. Which of the following complexes is not normally seen on an electrocardiogram tracing?

a)

P wave

b)

QRS complex

c)

T wave

d)

U wave

41.

Blood pressure is recorded as

a)

Hydrostatic /diastolic

b)

Diastolic/ hydrostatic

c)

Systolic/diastolic

d)

Diastolic/systolic

42.

Pressure exerted on the walls of the blood vessels is termed

a)

Hypertension

b)

Vesicular pressure

c)

Blood Pressure

d)

Heart pressure

43.

Blood pressure is used to determine

a)

electrical current though the heart

b)

function of coronary artery

c)

if adequate blood is getting to tissues.

d)

Speed of blood through veins

44.
For a blood pressure reading, the number on top measures...
a)
Diastolic Pressure
b)
Systolic Pressure
c)
Diastemic Pressure
d)
Systemic Pressure
45.

Normal blood pressure is...

a)

120/80 mmHg

b)

80/120 mmHg

c)

140/90 mmHg

d)

80/140 mmHg

46.
A blood pressure cuff is also called a 
a)
Mercury meter
b)
Stethoscope 
c)
Pythogometer
d)
Sphygnomanometer
47.
Systolic and diastolic pressure are measured in units of 
a)
mmHg
b)
Newtons
c)
Pascals
d)
Pounds per Meter
48.
The number on the bottom of a BP reading measures...
a)
Pressure during a heart contraction
b)
Pressure between heart beats
c)
Pressure of the blood vessels on the blood
d)
Thickness of blood
49.

High blood pressure is also called ...

a)

diastolic pressure

b)

systolic pressure

c)

hypotension

d)

hypertension

50.

Person has a blood pressure of 140 mmHg/ 90 mmHg. How would you categorize their blood pressure?

a)

Normal range

b)

prehypertension

c)

hypertension

d)

hypotension

51.

Highest pressure against blood vessels. Represented by first "thump" sound

a)

diastolic pressure

b)

systolic pressure

c)

hypotension

d)

hyperstension

52.

lowest pressure against the blood vessels of the body. Measured when the "thump" stops

a)

diastolic pressure

b)

systolic pressure

c)

hypotension

d)

hypertension

53.

During depolarization, the inside of the cell becomes _____.

a)

more negative

b)

less negative

54.

During repolarization, the inside of the cell becomes _____.

a)

more negative

b)

less negative

55.

EKG Technicians must be responsible for and to recognize or identify all of the following, EXCEPT:

a)

Patient Assessment

b)

Palpitations

c)

Diabetes

d)

Pulmonary Embolism

56.

This individual uses the EKG as their first tool of investigation.

a)

EKG Technician

b)

Cardiologist

c)

ER Physician

d)

ICU Physician

57.

The result is a dramatic drop in blood pressure or equal systolic/diastolic , eg. 120/115 (fatal).

a)

Atrial Hypertrophy

b)

Cardiac Tamponade

c)

Abberant EKG Rhythms

d)

Impulse Re-entry Cycles

58.

If too high or too low, they can affect your heart's electrical impulses and contribute to arrhythmia development

a)

Abberant EKG Rhythms

b)

Palpitations

c)

Cardiac Electrolytes

d)

Ectopic Beats

59.

A sensation that the heart is racing, pounding, fluttering, or skipping a beat, often bothersome, but hardly ever a sign of heart disease.

a)

Ectopic Beats

b)

Palpitations

c)

Impulse Re-entry Cycles

d)

Aberrant EKG Rhythms

60.

Plays a critical role in the transmission of electrical impulses in the heart (T Wave).

a)

Sodium

b)

Potassium

c)

Calcium

d)

Magnesium

61.

Too much may cause arrhythmias, MI, and plaque build-up.

a)

Sodium

b)

Potassium

c)

Calcium

d)

Magnesium

62.

The monitor will show electrical activity in the heart, but the patient will have no palpable pulse.

a)

Cardiac Tamponade

b)

Agonal Rhythm

c)

Asystole

d)

PEA

63.

Plays a critical role in the transmission of electrical impulses in the heart (QRS Complex).

a)

Sodium

b)

Potassium

c)

Calcium

d)

Magnesium

64.

They are common and may occur for no known reason.

a)

Aberrant EKG Rhythms

b)

Ectopic Beats

c)

Palpitations

d)

Impulse Re-entry Cycles

65.

Affects QT Interval

a)

Sodium

b)

Potassium

c)

Calcium

d)

Magnesium

66.

Interpret this Rhythm:

a)

3rd Degree AV Block

b)

Agonal Rhythm

c)

Asystole

d)

PEA

67.

An abnormally low concentration of oxygen in the blood.

a)

Apnea

b)

Dyspnea

c)

Hypoxemia

d)

Low Pulse Oximetry

68.

Used to treat Torsades de Pointes

a)

Sodium

b)

Potassium

c)

Calcium

d)

Magnesium

69.

Help trigger and conduct the electrical impulses in your heart

a)

Impulse Re-entry Cycles

b)

Ectopic Beats

c)

Aberrant EKG Rhythms

d)

Cardiac Electrolytes

70.

A condition in which one or more arteries in the lungs become blocked by a blood clot.

a)

PE

b)

MI

c)

CVA

d)

PEA

71.
What is the cause of a heart block dysrhythmia? 
a)
The ectopic focus originates above the ventricles
b)
The electrical current has difficulty traveling down the normal conduction pathway
c)
The rhythm originates at the AV junctional tissue, producing retrograde depolarization
d)
An ectopic beat that originates in the right or left atria
72.

Choose the 3rd degree heart block:

a)
b)
c)
d)
73.

WHICH STRIP IS CONSTANT WITH SINUS RHYTHM WITH FIRST DEGREE AV BLOCK?

a)

A

b)

B

c)

C

d)

D

74.

Which strip in Figure 17 is consistent with Mobitz I second-degree AV block (Wenckebach)?

a)

A

b)

B

c)

C

d)

D

75.

Which strip in Figure 17 is consistent with Mobitz II second-degree AV block?

a)

A

b)

B

c)

C

d)

D

76.

Which strip in Figure 17 is consistent with third-degree AV block?

a)

A

b)

B

c)

C

d)

D

77.

AV dissociation is a hallmark of

a)

first-degree AV block.

b)

Mobitz I second-degree AV block (Wenckebach).

c)

Mobitz II second-degree AV block.

d)

third-degree AV block.

78.

In Figure 18, which of the heart's pacemakers is controlling the ventricle?

a)

sinus node

b)

atrium

c)

AV node

d)

ventricle

79.

Treatment for first-degree AV block involves

a)

atropine

b)

digitalis

c)

electrical shock to the heart

d)

removing the cause

80.

Treatment for third-degree AV block usually includes

a)

pacemaker

b)

lidocaine

c)

digitalis

d)

amiodarone

81.

All AV blocks are caused by a block at the bundle branches.

a)

true

b)

false

82.

In AV blocks, the site of the block is either the AV node or the bundle branches.

a)

true

b)

false

83.

In first-degree AV block, all sinus impulses do get through to the ventricles.

a)

true

b)

false

84.

pacemakers treat ______________?

a)

Mobits II, and 3rd degree AV Blocks

b)

Mobitz I and MobitzII

c)

Only 3rd degree blocks

d)

Only Wenchebachs

85.

Mobitz I can progress to 3rd degree AV block

a)

true

b)

false

86.

The origin of the P waves in AV blocks is the ________

a)

AV node

b)

sinus node

c)

Bundle branches

d)

U wave

87.

The AV block that has gradually prolonging PR intervals until a QRS is blocked is ________.

a)

Wenckebach

b)

First degree

c)

3rd degree

88.

In ______________________ all sinus impulses get through to the ventricles.

a)

first degree AV block

b)

3rd degree AV block

c)

2nd degree Mobitz I

d)

2nd degree Mobitz II

89.

Why is this 3rd degree heart block?

a)

because there is artial fibrillation

b)

too much time between the p wave and qrs complex

c)

The p, qrs and t waves show no pattern

d)

all of the above

90.

What type of heart block is this?

a)

2nd degree

b)

1st degree

c)

3rd degree

d)

all of the above

91.

Why is this 1st degree heart block?

a)

The distance between the P wave and qrs complex is too long

b)

The distance between the P wave and qrs complex is too short

c)

There is not regular pattern

d)

The QRS complex is too big

92.

What type of heart block is this?

a)

2nd degree

b)

1st degree

c)

3rd degree

d)

all of the above

93.

What type of heart block is this?

a)

2nd degree

b)

1st degree

c)

3rd degree

94.

The paper on an ECG normally moves at:

a)

50mm/sec

b)

75mm/sec

c)

25cm/sec

d)

25mm/sec

95.

The width of each small box represents:

a)

0.04 seconds

b)

0.02 seconds

c)

0.40 seconds

d)

0.20 seconds

96.

What is the time frame occupied by one lead on a regular 12-lead ECG?

a)

0.3 seconds

b)

3 seconds

c)

13 seconds

d)

30 seconds

97.

The small boxes on ECG paper measure:

a)

1 cm by 0.20 seconds

b)

1mm by 0.20 seconds

c)

1cm by 0.04 seconds

d)

1mm by 0.04 seconds

98.

The big boxes on the ECG paper measure:

a)

5mm by 0.20 seconds

b)

1mm by 0.20 seconds

c)

5mm by 0.04 seconds

d)

1mm by 0.04 seconds

99.

A wave that is 10 small boxes high and three small boxes wide is described as being:

a)

1.0mm by 0.3 seconds

b)

10mm by 0.12 seconds

c)

12mm by 0.3 seconds

d)

12mm by 0.10 seconds

100.

A distance of 2 big boxes and 2 little boxes wide is described as being:

a)

22mm wide

b)

0.22 seconds wide

c)

0.48 seconds wide

d)

4.8 seconds wide

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