ECGS MADE EASY 5TH EDITION ACTUAL TEST PAPER QUESTIONS AND SOLUTIONS GRADED A+

ECGS MADE EASY 5TH EDITION ACTUAL TEST
PAPER QUESTIONS AND SOLUTIONS GRADED
A+

◉ the PR interval is considered prolonged if it is more than how long
in duration?
Answer: -0.20s


◉ which part of the conduction system receives an impulse from the
bundle of his & relays it to the purkinje fibers?
Answer: -R & L BB's


◉ on the ECG, the time necessary for the spread of an electrical
impulse thru the AV node, bundle of his, R & L BB's & the purkinje
fibers reflected by the:
Answer: -PR segment


◉ the normal duration of the QRS complex is:
Answer: -0.10s or less


◉ the portion of the ECG tracing used to determine the degree of ST
segment displacement is the :

, Answer: -TP or PR segment


◉ which part of the conduction system receives an impulse form the
SA node but delays relaying that impulse to the bundle of his,
allowing time for the atria to empty their contents into the ventricles
before the onset of ventricular contraction?
Answer: -AV node


◉ what is an example of an escape pacemaker:
a) SA node & AV junction
b) AV junction & ventricles
c) SA node & RBB
d) AV junction & LBB
Answer: - b


◉ 5 large boxes represent, each consisting of 5 small boxes,
represetn "what" on ECG paper
Answer: -1 second


◉ what surfaces of the heart are not directly viewed when using a
std 12 lead ECG?
Answer: -R ventricle & posterior surface of the L ventricle