ST, T, and U waves
Question 1: Which of the following may cause ST segment depression?
A.
Ischemia
B.
Hyperventilation
C.
Ventricular Hypertrophy
D.
Hypokalemia
E.
All of the above
Question 2: The ST-T waves in this ECG are:
A.
Primary ST-T wave abnormalities
B.
Secondary ST-T wave changes
C.
Non-specific T wave abnormalities
D.
T wave inversion abnormalities (aVR and V1)
E.
Normal
Question 3: Which of the following conditions is most likely to cause the changes seen in this ECG?
A.
Subendocardial ischemia
B.
Lesion of the circumflex artery
C.
Posterior wall transmural injury
D.
Acute pericarditis
E.
Early repolarization
Question 4: What is the correct diagnosis of this ECG?
A.
Normal variant ST segment elevation
B.
Acute lateral wall subendocardial ischemia
C.
Acute inferior transmural ischemia
D.
Non-specific ST-T wave abnormality
E.
Acute pericarditis
Question 5: Which of the following conditions is usually associated with primary ST-T wave abnormalities?
A.
BBB
B.
PVCs
C.
WPW preexcitation
D.
Electrolyte abnormalities
E.
Fascicular block
Question 6: This ECG shows an example of right bundle branch block. What other abnormality is present?
A.
Primary ST-T wave abnormalities
B.
Secondary ST-T wave changes
C.
Anterolateral MI
D.
LVH
E.
RVH
Question 7: What clinical condition might this ECG represent?
A.
Acute pericarditis
B.
Subarachnoid hemorrhage
C.
Hypothyroidism
D.
Aortic stenosis
E.
It's a normal ECG (If you're considering this, please start over at Lesson 1)
Question 8: Normal U waves are usually best seen in which leads?
A.
I
B.
V2, V3
C.
II, III, and aVF
D.
aVL or aVR
E.
I and II
Question 9: What is the major abnormality on this ECG?
A.
RAD
B.
Low voltage QRS complexes
C.
Long QT interval
D.
High lateral MI
E.
Low amplitude T waves
Question 10: This ECG shows LBBB with:
A.
Prominent U waves
B.
Primary ST-T wave abnormalities
C.
Symmetrical T waves
D.
Giant TU fusion waves
E.
All of the above
ST, T, and U wavesST, T, and U waves