Test Questions Flashcards
CET is reviewing a tracing for a pt who has a ventricular pacemaker. Which rhythm pattern should they expect after a pacing spike?
a) QRS interval between 0.06-0.1 sec
b) wide QRS interval
wide QRS interval
what is the apporpriate position for a pt during a nuclear stress test while the camera is scanning
supine with arms above head
what is the difference between 1st degree and 2nd degree heart block
- 1st degree = p wave with consistently long PR interval before QRS
- 2nd degree = some p waves w/o QRS but PR constant
what is an expected finding of impaired conduction through AV node
prolonged PR interval
what interval should be used to determine the regularity of ventricular depolarization
R-R wave interval
what is the 300 method
divide 300 by number of large boxes between 2 r waves
pt is having accelerated junctional rhythm on ekg, what speed setting should be used
25 mmm/sec
which ekg finding differntiates accelerated idioventricular rhythm from junctional rhythm
a) accelerated idioventricular rhythm has p waves
b) ventricular rate in accelerated idioventricular rhythm is slower than junctional
c) accelerated idioventricular rhythm is irregular
d) accelerated idioventricular rhythm has wide QRS complexes
d) acclerated idioventricular rhythm has wide QRS complexes
which electrode creates leads I, II, and aVR
right arm
to make a ekg tracing smaller, what should be changed and how
make the gain smaller
which leg is involved in leads I, II, and III
left leg
the faster the heart rate, the ____ required
faster the paper speed
ST segment depression and T wave inversion in multiple leads are signs of
myocardial ischemia
what is the reason that resting tab electrodes cannot be used for more than 2 consecutive EKG tracings
electrodes do not conduct accurately after 2 tracings
bundle branch blocks look like
bunny ears (or chirstmas trees)
