Download Basic 12 Lead EKG Chapters 1 -3 Worksheet

Basic 12 Lead EKG Chapters 1 -3 Worksheet
Name __________________________________________________
Date________________
Match the following using the words in the word-bank below.
____1. Repetitive pumping process that includes all the events associated with flow of blood through the heart.
____2. Pulmonary arteries and veins, aorta and superior/inferior vena cava, attaches the heart to the thorax.
____3. Follows relative refractory period during which a weaker stimulus can cause depolarization of a cardiac cell.
____4. Also known as the visceral pericardium; the external layer of the heart wall that covers the heart muscle
and the main coronary arteries cross this layer before entering the myocardium.
____5. Largest vein that drains the heart.
____6. The RCA and LCA
____7. Valves that separate the atria from the ventricles; tricuspid and mitral valve.
____8. Stimulation of the cardiac cell; moves from the innermost layer of the heart to the outermost layer.
____9. Extent to which a cell is able to respond.
____10. Valves that prevent backflow of blood from the aorta and pulmonary arteries; aortic and pulmonic valves.
____11. Cardiac cells return to a resting state; proceeds from the epicardium to the endocardium.
____12. Left anterior descending artery
Word Bank
AV valves
Cardiac cycle
Coronary arteries
Coronary sinus
Depolarization
Epicardium
Great vessels
LAD
Refractoriness
Repolarization
Semilunar valves
Supernormal period
Basic 12 Lead EKG Chapters 1 -3 Worksheet
Name __________________________________________________
Date________________
Select the best answer.
1. Records the electrical activity of a large mass of atrial and ventricular cells.
a. Electrocardiogram
b. Echocardiogram
c. Monitor
d. HD TV
2. EKG is used to
a. Monitor patient’s heart rate
b. Evaluate effects of disease or injury to heart function
c. Evaluate pacemaker function
d. Evaluate the response to medications
e. Obtain baseline recording before, during and after a medical procedure
f. All of the above
3. Bipolar leads are
a. I, IV, and V
b. II, III, and aVF
c. I, II, and III
d. V1 – V6
4. Unipolar leads are
a. I, II, III
b. aVR, aVL, and aVF
c. II, aVR, aVF
d. II, III, aVL
5. The chest leads, which are Unipolar leads, are leads
a. I, V1 and V2
b. II, V1, and V6
c. V1 – V6
d. V4- V6
6. With a right-side EKG the leads are placed in the same location as in a left-side EKG, except on the right
side of the chest.
a. True
b. False
Basic 12 Lead EKG Chapters 1 -3 Worksheet
Name __________________________________________________
Date________________
7. The aVR lead is not used for infarction recognition, but rather correct lead placement or change in current
flow or axis deviation.
a. True
b. False
8. In a 12-lead EKG tracing, each lead provides a ______second view.
a. 2.0
b. 2.5
c. 3.0
d. 6.0
9. In a 12-lead EKG intervals and durations are expressed in milliseconds.
a. True
b. False
10. One box is equal to 1mm high and 1mm wide. Voltage is the number of boxes crossed by the waveform.
calibration for a EKG is 10mmtall and is equal to ____mV.
a. 2
b. 10
c. 1
d. 4
11. A pathologic Q wave is more than 0.04 seconds in duration.
a. True
b. False
12. The changing of the QRS from more negative to positive in the V leads is called
a. R-R progression
b. R-S progression
c. R wave progression
13. The transition zone is between V3 and V4; the QRS changes from
a. More negative to positive
b. More positive to negative
c. Wide to narrow
14. Current flow to the left of normal is called left axis deviation.
a. True
b. False
Basic 12 Lead EKG Chapters 1 -3 Worksheet
Name __________________________________________________
Date________________
15. Distortion of an EKG tracing by electrical activity that is non-cardiac in nature is called
a. Interruption
b. Artifact
c. Messy reception
16. What electrode is placed on the fourth intercostal space to the right of the sternum?
a. V2
b. V1
c. V4
17. When obtaining a right-sided or posterior leads, a standard 12-lead is obtained first.
a. True
b. False
18. If a 12-lead monitor or adapter is not available what lead may be used with a 3 lead monitor to obtain a 12
lead view of the heart?
a. Leads I, II and III
b. aVR lead
c. MCL leads
19. A symbol that represents the force of depolarization and repolarization waves is
a. Vector
b. Axis
c. Pole
20. What leads are used to estimate electrical axis quickly?
a. Leads I and aVR
b. Leads 1 and aVF
c. Leads II and aVF