CCT EXAM PRACTICE (EE) Q&As
(Verified Answers) 2026
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 - correct answer 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 - correct answer 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
,CCT EXAM PRACTICE (EE) Q&As
(Verified Answers) 2026
-30 to 60 beats per minute
✅
-60 to 80 beats per minute
-80 to 100 beats per minute - correct answer 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 - correct answer 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?
,CCT EXAM PRACTICE (EE) Q&As
(Verified Answers) 2026
-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 - correct answer 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 - correct answer 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?
, CCT EXAM PRACTICE (EE) Q&As
(Verified Answers) 2026
-The right atrium
-The left ventricle
✅
-The right ventricle
-The lungs - correct answer 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 - correct answer 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 __ - correct answer
type I
✅ Second degree heart block,
(Verified Answers) 2026
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 - correct answer 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 - correct answer 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
,CCT EXAM PRACTICE (EE) Q&As
(Verified Answers) 2026
-30 to 60 beats per minute
✅
-60 to 80 beats per minute
-80 to 100 beats per minute - correct answer 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 - correct answer 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?
,CCT EXAM PRACTICE (EE) Q&As
(Verified Answers) 2026
-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 - correct answer 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 - correct answer 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?
, CCT EXAM PRACTICE (EE) Q&As
(Verified Answers) 2026
-The right atrium
-The left ventricle
✅
-The right ventricle
-The lungs - correct answer 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 - correct answer 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 __ - correct answer
type I
✅ Second degree heart block,
