EKG

Question 1

V1

Answer 1

right side sternum 4th intercostal space

Question 2

V2

Answer 2

left side sternum 4th intercostal space

Question 3

V4

Answer 3

place before V3. goes under nipple line (mid clav) 5th intercostal space

Question 4

V3

Answer 4

in between V2 and V4

Question 5

V5

Answer 5

Anterior axillary line 5th intercostal space

Question 6

V6

Answer 6

midaxillary 5th intercostal space

Question 7

a common cause for sinus tach is..

Answer 7

hyperthyroidism

Question 8

a common cause for sinus bradycardia is…

Answer 8

hypothyroidism

Question 9

without the SA/AV node, perkinje fibers fire at a rate of what?

Answer 9

40-60 bpm

Question 10

the SA node is what?

Answer 10

the pacemaker of the heart

Question 11

which interval shows the measurement of ventricles contracting and relaxing

Answer 11

Q-T

Question 12

which interval shows ventricular depolarization

Answer 12

R-R

Question 13

describe why pts with CAD may not have symptoms until later stages

Answer 13

because of Collateral Circulation

Question 14

which interval shows the time between atrial depolarization

Answer 14

P-R

Question 15

which interval shows the slowing of the electrical impulse to allow the ventricles to fill on a rhythm strip

Answer 15

P-R segment

Question 16

Which of the following EKG finding differentiates accelerated idioventricular rhythm from junctional rhythm?

Answer 16

Accelerated idioventricular rhythm has wide QRS complexes

Question 17

Which of the following can reduce abnormal marks on an EKG tracing that are caused by patient movement or muscle tremors?

Answer 17

Artifact filter

Question 18

What abnormality is associated with large U waves on the EKG

Answer 18

A decreased potassium level cause
U waves to become visible on the
EKG