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Analyzing ECGs

Total questions: 28

Worksheet time: 14mins

Name
Class
Date
1.

This element of the EKG represents ventricular depolarization and contraction, and the blood moving to the lungs and body

a)

P Wave

b)

QRS Complex

c)

T Wave

d)

PR Interval

2.

This element of the EKG represents the SA node firing, the atria contracting and the blood moving to the ventricles

a)

T Wave

b)

P Wave

c)

PRS Complex

d)

ST segment

3.

How many electrodes are placed on the patient for a 12 lead EKG?

(a)  

4.

Which picture shows the correct placement for a 12 lead EKG?

a)
b)
c)
d)
5.

What is the heart rate on this EKG?

(a)  

6.

What part of the heart is the green arrow pointing to?

a)

SA Node

b)

AV Node

c)

Right and Left Bundle Branches

d)

Purkinge Fibers

7.

What part of the heart is the red arrow pointing to?

a)

SA Node

b)

AV Node

c)

Right and Left Bundle Branches

d)

Purkinge Fibers

8.

Select all the bipolar leads

a)

Lead I

b)

avR

c)

V1

d)

Lead II

e)

avL

9.

This element of the EKG represents repolarization of the ventricles

a)

T Wave

b)

P Wave

c)

PRS Complex

d)

ST segment

10.

The pacemaker of the heart is the..

a)

SA node

b)

AV node

c)

Purkinje Fibers

d)

Bundle branches

11.

When placing EKG electrodes, which one is considered the grounding electrode?

a)

Right Arm

b)

Left Arm

c)

Left Leg

d)

Right Leg

12.

What is the best position for the patient when performing an EKG?

a)

Prone

b)

Supine

c)

Lateral

d)

Standing

13.

What is the best position for a patient with severe shortness of breath when performing an EKG?

a)

Prone

b)

Semi-Fowlers

c)

Lateral

d)

Left Sim's

14.

Which of the following leads is usually used as a rhythm strip?

a)

Lead I

b)

Lead II

c)

Lead avR

d)

V4

15.

Which electrode is found 5th Intercostal Space, midclavicular line?

a)

V1

b)

V2

c)

V3

d)

V4

16.

Which electrode is found in the 4th Intercostal Space, to the right of the sternum?

a)

V1

b)

V2

c)

V3

d)

V4

17.

First step in assessing an ECG strip

a)

count the number of R waves

b)

count the number of P waves

c)

make sure that you are assessing a 6 second strip

d)

count the number of large boxes

18.

How do you decide if an ECG strip rate is regular?

a)

count the P-P interval

b)

count the R-R interval

c)

count the pr interval

d)

count the QR interval

19.

Which method for assessing ECG rate is best for an irregular rhythm?

a)

1500 method

b)

6 second method

c)

300 method

20.

Which method is the most accurate for assessing an ecg rhythm rate?

a)

1500 method

b)

6 second method

c)

300 method

21.

How many large ECG boxes will be present on a 6 second strip?

a)

.04

b)

30

c)

150

d)

80

22.

Your patient has p wave abnormalities. You know this means there could be a problem in the

a)

venticle

b)

atria

c)

valves

23.

Your patient has a QRS duration of .30 seconds. You know this could indicate a problem in the

a)

atria

b)

ventricles

c)

valves

24.

Ventricular repolarization is shown in the

a)

p wave

b)

qrs complex

c)

st segment

d)

pr interval

25.

The major concern for ST segment elevation is

a)

stroke

b)

pericarditis

c)

myocardial infarction

d)

medications

26.

Your patient's R-R interval is .50 seconds. What is the longest your patient's QT interval should be before you would need to document an abnormality or notify a provider?

a)

.50 seconds

b)

.40 seconds

c)

.25 seconds

d)

.10 seconds

27.

Using the six second method, you count 12 R waves in a six second strip. This could be documented as

a)

a regular rate

b)

bradycardia

c)

tachycardia

28.

Using the six second method, you count 4 R waves in a six second strip. This could be documented as

a)

a regular rate

b)

bradycardia

c)

tachycardia