CARDIAC CONDUCTION SYSTEM AND
ARRHYTHMIA IDENTIFICATION
◉ Progressively prolonged
Answer: The PR intervals in this tracing could be described as
◉ An intellectually disabled adult patient is frightened of the EKG
machine and does not want to lie down for the test. What should the
EKG tech. do?
Answer: Offer to show the machine to the patient and answer any
questions
◉ Which leads will show changes if an EKG technician has reversed
the right and left arm leads?
Answer: Leads I and aVR
◉ The left-most line in the right-hand image
Answer: Which line represents the body's midline?
◉ The middle line in the left hand image
Answer: Which line is the midaxillary line?
,◉ An EKG tech. sees pacing spikes on a patient's EKG but no
electrical activity following the spikes. This is likely due to a
pacemaker error known as
Answer: Failure to capture
◉ Which of the following should patients be advised not to do before
an early-morning resting EKG?
Answer: Apply lotion or bath oil
◉ Which of these series represents the depolarization and
repolarization of the ventricles?
Answer: QRS complex, T wave
◉ What type of stress test is likely to be performed on a patient who
does not have use of her legs?
Answer: Pharmacologic stress test
◉ Narrow and wide are words often used to describe
Answer: QRS complexes
◉ Under which of these circumstances may an EKG tech share her
interpretation of an EKG with the patient?
, Answer: EKG tech must not share her interpretation with the patient
◉ Measuring vital signs includes:
Answer: Checking pulse, Body temp, BP, and respirations
◉ The complexes in this EKG tracing could be described as:
Answer: Polymorphic
◉ Which electrode is shared by leads 1 and 3?
Answer: LA
◉ At standard gain a calibration mark will measure:
Answer: 2 large blocks high
◉ A rhythm in which P-P intervals are regular and R-R intervals are
regular but there is no clear relationship between the activity of the
atria and ventricles is:
Answer: 3rd degree heart block
◉ The irregular beat in this EKG tracing is
Answer: An escape beat