MDCAT Biology MCQ #2113

What is the effect of increased potassium ion concentration on heart function?

MDCAT Biology MCQ #2113

  1. Question 1

    Q1. What is the effect of increased potassium ion concentration on heart function?

    • A) Increased heart rate
    • B) Decreased heart rate
    • C) Arrhythmias
    • D) Cardiac arrest

    Answer: Arrhythmias

    Explanation: Increased potassium can lead to arrhythmias. High levels can cause cardiac arrest. It affects the heart's electrical activity.