EKG Final Exam Review Questions
and Answers9
How can cardiac output be calculated? - ANSWERS-Stroke volume multiplied by heart rate
Briefly explain the Excitability properties of cardiac cells. - ANSWERS-Ability of the cells to
respond to electrical stimulation
What node is the natural pacemaker that generates 60-100 bpm? - ANSWERS-Sino Arial (SA)
Node
The EKG Technician would place how many leads to the chest and how many leads to the limb
to obtain a 12 lead EKG? - ANSWERS-6 electrodes to the chest and 4 electrodes to the limbs
Lead 3 is what kind of lead? - ANSWERS-Bi-polar lead
What electrodes do you combine to form a Lead II? - ANSWERS-LL and RA
Where are the V4 and V2 electrodes placed, on a 12 lead EKG? - ANSWERS-5th intercostal space
at left midclavicular line and 4th intercostal space to left of sternum.
Which wave represents Ventricular Repolarization? - ANSWERS-T wave
On a EKG graph, which wave represents Atrial Depolarization? - ANSWERS-P Wave
What is a normal P-R Interval - ANSWERS-0.12-0.20 msec
, Describe a 3rd degree (Complete) heart block? - ANSWERS-No association between P waves and
QRS complexes
Describe what a loose electrode looks like on an EKG graph - ANSWERS-Loose electrode: Artifact
caused by insufficeient contact between the electrode and the skin
What is the diagram representing? - ANSWERS-Sinus rhythm with a wondering baseline
(Movement; poor electrode contact; Breathing)
How many BPM is the following EKG representing? - ANSWERS-75 BPM
Showing professional telephone etiquette includes what? - ANSWERS-Identifying yourself and
your department whenever placing or receiving a call.
How many electroleads are used in a 12 lead EKG? - ANSWERS-10 Electrodes
What would a "T" Wave inversion indicate on a EKG Graph? - ANSWERS-Ischemia (Labeled a
NSTEMI; Non-ST Elevation Myocardial Infarction)
What would be the duration of one large box on a EKG Graph? - ANSWERS-0.20 seconds
What is the normal paper speed from an EKG machine? - ANSWERS-25 mm/second
What would be the voltage of one large box on a vertical axis? - ANSWERS-0.5 millivolts
What is systole? - ANSWERS-Contraction phase of heart muscle
and Answers9
How can cardiac output be calculated? - ANSWERS-Stroke volume multiplied by heart rate
Briefly explain the Excitability properties of cardiac cells. - ANSWERS-Ability of the cells to
respond to electrical stimulation
What node is the natural pacemaker that generates 60-100 bpm? - ANSWERS-Sino Arial (SA)
Node
The EKG Technician would place how many leads to the chest and how many leads to the limb
to obtain a 12 lead EKG? - ANSWERS-6 electrodes to the chest and 4 electrodes to the limbs
Lead 3 is what kind of lead? - ANSWERS-Bi-polar lead
What electrodes do you combine to form a Lead II? - ANSWERS-LL and RA
Where are the V4 and V2 electrodes placed, on a 12 lead EKG? - ANSWERS-5th intercostal space
at left midclavicular line and 4th intercostal space to left of sternum.
Which wave represents Ventricular Repolarization? - ANSWERS-T wave
On a EKG graph, which wave represents Atrial Depolarization? - ANSWERS-P Wave
What is a normal P-R Interval - ANSWERS-0.12-0.20 msec
, Describe a 3rd degree (Complete) heart block? - ANSWERS-No association between P waves and
QRS complexes
Describe what a loose electrode looks like on an EKG graph - ANSWERS-Loose electrode: Artifact
caused by insufficeient contact between the electrode and the skin
What is the diagram representing? - ANSWERS-Sinus rhythm with a wondering baseline
(Movement; poor electrode contact; Breathing)
How many BPM is the following EKG representing? - ANSWERS-75 BPM
Showing professional telephone etiquette includes what? - ANSWERS-Identifying yourself and
your department whenever placing or receiving a call.
How many electroleads are used in a 12 lead EKG? - ANSWERS-10 Electrodes
What would a "T" Wave inversion indicate on a EKG Graph? - ANSWERS-Ischemia (Labeled a
NSTEMI; Non-ST Elevation Myocardial Infarction)
What would be the duration of one large box on a EKG Graph? - ANSWERS-0.20 seconds
What is the normal paper speed from an EKG machine? - ANSWERS-25 mm/second
What would be the voltage of one large box on a vertical axis? - ANSWERS-0.5 millivolts
What is systole? - ANSWERS-Contraction phase of heart muscle
