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NEET Sample Paper NEET Sample Test Paper-52

  • question_answer
    Which of the following cardiac effects can be observed if the potassium concentration is increased two to three times the normal value-

    A) Weakness of heart

    B)   Abnormal rhythm

    C) Death               

    D) All the above

    Correct Answer: D

    Solution :

    The elevated potassium level in extracellular fluids causes a decreased resting membrane potential in the cardiac muscle fibres.


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