Electrolyte Balance · Physiology

Hypokalemia is most likely to cause which cardiac effect?

  1. Shortened QT interval
  2. Ventricular tachycardia
  3. Flattened T waves
  4. ST segment elevation
Show answer and explanation

Correct answer: Flattened T waves

Low potassium levels reduce repolarization efficiency. This results in flattened or inverted T waves.

Difficulty: Medium Question 8 of 20

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