QuestionSBA
QuestionChoice
This is not the correct answer. This is one of the ECG features of hypokalaemia, which includes prolongation of the PR interval, increased P wave amplitude, widespread ST depression and T wave flattening or inversion, and prominent U waves in precordial leads V2-V3. Aside from hypokalaemia, this feature can also be found in the digoxin effect but the downsloping ST depressions have a characteristic "reverse tick" or "Salvador Dali sagging" appearance.
10027389
d
Widespread ST depression and T wave flattening or inversion
QuestionChoice
This is not the correct answer. This is one of the ECG features of hypokalaemia, which includes prolongation of the PR interval, increased P wave amplitude, widespread ST depression and T wave flattening or inversion, and prominent U waves in precordial leads V2-V3. Aside from severe hypokalaemia, prominent U waves can also be found in bradycardia.
10027390
e
Prominent U waves in precordial leads V2-V3
QuestionChoice
This is the correct answer. Features of hyperkalaemia include peaked (tall) T waves, PR prolongation, bradyarrhythmias, conduction blocks and QRS widening with bizarre morphology
10027386
a
Broad QRS complex
QuestionChoice
This is not the correct answer. This is one of the ECG features of hypokalaemia, which includes prolongation of the PR interval, increased P wave amplitude, widespread ST depression and T wave flattening or inversion, and prominent U waves in precordial leads V2-V3. Aside from hypokalaemia, peaked P waves, especially in lead II, can also be found in right atrial enlargement (E.g. P pulmonale)
10027388
c
Increased P wave amplitude
QuestionChoice
This is not the correct answer. In terms of T wave morphology, hyperkalaemia classically presents with peaked/ tall T waves. T wave inversion is commonly seen as a normal finding in children, or as a pathological finding in bundle branch block, pulmonary embolism, myocardial ischemia or infarction, ventricular hypertrophy and so forth.
10027387
b
T wave inversion
Concept
Chapter
2693
5976
Hyperkalemia
Topic
170
Clinical Chemistry
17875
Which of the following features is most consistent with a patient presenting with hyperkalemia?
a