EKG Flashcards
V1
right side sternum 4th intercostal space
V2
left side sternum 4th intercostal space
V4
place before V3. goes under nipple line (mid clav) 5th intercostal space
V3
in between V2 and V4
V5
Anterior axillary line 5th intercostal space
V6
midaxillary 5th intercostal space
a common cause for sinus tach is..
hyperthyroidism
a common cause for sinus bradycardia is…
hypothyroidism
without the SA/AV node, perkinje fibers fire at a rate of what?
40-60 bpm
the SA node is what?
the pacemaker of the heart
which interval shows the measurement of ventricles contracting and relaxing
Q-T
which interval shows ventricular depolarization
R-R
describe why pts with CAD may not have symptoms until later stages
because of Collateral Circulation
which interval shows the time between atrial depolarization
P-R
which interval shows the slowing of the electrical impulse to allow the ventricles to fill on a rhythm strip
P-R segment
Which of the following EKG finding differentiates accelerated idioventricular rhythm from junctional rhythm?
Accelerated idioventricular rhythm has wide QRS complexes
Which of the following can reduce abnormal marks on an EKG tracing that are caused by patient movement or muscle tremors?
Artifact filter
What abnormality is associated with large U waves on the EKG
A decreased potassium level cause
U waves to become visible on the
EKG
