ST, T, and U waves
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Question 1: Which of the following may cause ST segment depression?
Select an answer:
A.
Ischemia
B.
Hyperventilation
C.
Ventricular Hypertrophy
D.
Hypokalemia
E.
All of the above
Question 2: The ST-T waves in this ECG are:
Select an answer:
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?
Select an answer:
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?
Select an answer:
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?
Select an answer:
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?
Select an answer:
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?
Select an answer:
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?
Select an answer:
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?
Select an answer:
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:
Select an answer:
A.
Prominent U waves
B.
Primary ST-T wave abnormalities
C.
Symmetrical T waves
D.
Giant TU fusion waves
E.
All of the above