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