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CCT EXAM PRACTICE (EE)/91 QUESTIONS WITH SOLUTIONS
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CCT EXAM PRACTICE (EE)/91 QUESTIONSWITH SOLUTIONS
Which of the following leads would help to record the electrical activity in the
heart's horizontal plane?
-Bipolar lead
-12-lead ECG
-Precordial leads
-Unipolar leads - -Precordial leads
This provides a transverse view through the middle of the heart which
divides it into upper and lower portions.
-Of the electrocardiogram waves, which would be considered the first
deflection after the diastole that is produced because of the atrial
depolarization?
-T wave
-S wave
-Q wave
-P wave - -P wave
This occurs because of the atrial depolarization of the heart.
-The Bundle of His has an intrinsic firing rate of which of the following?
-40 to 60 beats per minute
-30 to 60 beats per minute
-60 to 80 beats per minute
-80 to 100 beats per minute - -40-60 beats per minute
The Bundle of His is located at the superior portion of the interventricular
septum. The Bundle of His is actually the pathway of the electrical impulses
that lead out of the SA node.
-If a patient is experiencing a low blood pressure, which of the following
terms would be correct?
-Hyper tension
-Hypoxemia
-Hypotension
-Hypoplastic - -Hypotension
,Hypertension: high blood pressure
Hypoxemia: low oxygen concentration in the blood
Hypoplastic: when an organ is abnormally small because of a problem with
development prior to birth
Hypotension: low blood pressure
-The aVR lead picks up electrical activity from which of the following?
-The center of the heart to the right arm
-The center of the heart to the left leg
-The center of the heart to the left arm
-From the left arm to the left leg - -The center of the heart to the right arm
The center of the heart to the left leg: aVF
The center of the heart to the left arm: aVL
The center of the heart to the right arm: aVR
From the left arm to the left leg: lead III
-The Q wave should have a duration of less than how many seconds?
-0.30 seconds
-0.20 seconds
-0.10 seconds
-0.04 seconds - -0.04 seconds
The Q wave should have a duration of less than 0.04 seconds. It is the first
negative component of the QRS complex and if it lengthens, it could be
indicative of a myocardial infarction
-When the mitral valve opens, the blood flows from the left atrium to which
of the following?
-The right atrium
-The left ventricle
-The right ventricle
-The lungs - -The left ventricle
-Which of the following age groups would be most likely to experience
fibrosis in the conduction system?
-21-30 years of age
-Infants
-The elderly
-40-60 years of age - -The elderly
, Fibrosis can occur at any age, but is most common with the elderly. They
have a higher incidence of AV block which can be caused by fibrosis in the
conduction system
-A dropped beat indicates what? (Skipped QRS wave)
____ degree heart block, type __ - -Second degree heart block, type I
With this rhythm, the PR interval will lengthen in each of the intervals until
one QRS completely disappears.
-Which of the following characteristics would a good ECG technician have?
-They should be reliable
-They should have mechanical aptitude
-They should be able to follow directions
-All of the above - -All of the above
-Which of the following would be the main purpose of the heart valves?
-The prevention of back-flow of blood
-They assure that there is a uni-directional flow of blood through the heart
-Both A and B
-None of the above - -Both A and B
-Which of the following would be considered correct regarding the grid
paper that is used for an ECG?
-The grid paper consist of horizontal lines
-The grid paper is not heat sensitive
-The grid paper consist of vertical lines
-Both A and C - -Both A and C
The grid paper that is used for an ECG test:
Consists of horizontal lines
Consists of vertical lines
Is heat sensitive
Is used for cardiac monitoring and ECG's
-If a patient's heart becomes softened, it could cause changes in the
electrocardiogram. Which of the following terms would be considered correct
for a softening of the heart?
-Cardiomegaly
-Cardiopathy
-Cardiomalacia
-None of the above - -Cardiomalacia
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