CCT (EKG) Exam Prep UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What is the U Wave, and what does it represent? - CORRECT ANSWER - Extra wave at
the end of a T wave, shows papillary muscle repolarization
What part of the ecg represents ventricular contraction? - CORRECT ANSWER - ST
Segment
What may develop in patients with a prolonged QT segment? - CORRECT ANSWER - V-
Tach
What standards leads look at the inferior heart? - CORRECT ANSWER - III, aVF
What standards leads look at the lateral heart? - CORRECT ANSWER - I, II, aVL
What standards leads look at the right atrium? - CORRECT ANSWER - aVR
What chest leads look at the right ventricle? - CORRECT ANSWER - V1, V2
What chest leads look at the interventricular septum? - CORRECT ANSWER - V3, V4
What chest leads look at the left ventricle? - CORRECT ANSWER - V5, V6
What leads give a view of the apex of the left ventricle? - CORRECT ANSWER - I, V6,
aVL
, On a normal ECG, what standard leads are positive? - CORRECT ANSWER - I, II, III
What 3 leads are used to determine cardiac axis? - CORRECT ANSWER - I, II, III
How does right ventricular hypertrophy effect:
1. QRS Complex
2. Axis - CORRECT ANSWER - 1. QRS Complex - Becomes negative in lead III
2. Axis - Swings to the left
What is the transition point, where is it seen on a 12 lead, and what does it represent? -
CORRECT ANSWER - - The point where R and S waves are equal
- Represents the interventricular septum
- Best seen on V3 & V4
When the transition point moves from leads v3/v4 to leads v4/v5 or v5/v6 what does this
represent? - CORRECT ANSWER - Chronic lung disease > right ventricular enlargement
> heart rotates clockwise
What are 6 things first degree heart block show pathology of? - CORRECT ANSWER -
CAD, Acute rheumatic carditis, rheumatic fever, digoxin toxicity, electrolyte disturbances, MI
What does second degree heart block indicate? - CORRECT ANSWER - - A need for
pacing (with 2:1, 3:1, 4:1 conduction)
- Heart disease
What are 3 things that may cause a complete heart block? - CORRECT ANSWER -
Fibrosis near the bundle of HIS, MI, BBB's
ACTUAL Exam Questions and CORRECT
Answers
What is the U Wave, and what does it represent? - CORRECT ANSWER - Extra wave at
the end of a T wave, shows papillary muscle repolarization
What part of the ecg represents ventricular contraction? - CORRECT ANSWER - ST
Segment
What may develop in patients with a prolonged QT segment? - CORRECT ANSWER - V-
Tach
What standards leads look at the inferior heart? - CORRECT ANSWER - III, aVF
What standards leads look at the lateral heart? - CORRECT ANSWER - I, II, aVL
What standards leads look at the right atrium? - CORRECT ANSWER - aVR
What chest leads look at the right ventricle? - CORRECT ANSWER - V1, V2
What chest leads look at the interventricular septum? - CORRECT ANSWER - V3, V4
What chest leads look at the left ventricle? - CORRECT ANSWER - V5, V6
What leads give a view of the apex of the left ventricle? - CORRECT ANSWER - I, V6,
aVL
, On a normal ECG, what standard leads are positive? - CORRECT ANSWER - I, II, III
What 3 leads are used to determine cardiac axis? - CORRECT ANSWER - I, II, III
How does right ventricular hypertrophy effect:
1. QRS Complex
2. Axis - CORRECT ANSWER - 1. QRS Complex - Becomes negative in lead III
2. Axis - Swings to the left
What is the transition point, where is it seen on a 12 lead, and what does it represent? -
CORRECT ANSWER - - The point where R and S waves are equal
- Represents the interventricular septum
- Best seen on V3 & V4
When the transition point moves from leads v3/v4 to leads v4/v5 or v5/v6 what does this
represent? - CORRECT ANSWER - Chronic lung disease > right ventricular enlargement
> heart rotates clockwise
What are 6 things first degree heart block show pathology of? - CORRECT ANSWER -
CAD, Acute rheumatic carditis, rheumatic fever, digoxin toxicity, electrolyte disturbances, MI
What does second degree heart block indicate? - CORRECT ANSWER - - A need for
pacing (with 2:1, 3:1, 4:1 conduction)
- Heart disease
What are 3 things that may cause a complete heart block? - CORRECT ANSWER -
Fibrosis near the bundle of HIS, MI, BBB's
