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Physiology Body fluid compaments 72011863

Which of the following is cause of Hyperkalemia:

A
Exercise
B
Alkalosis
C
Insulin injection
D
Decrease serum osmolarity
High-Yield Explanation
Exercise causes hyperkalemia because Na+-K+ pump cannot keep pace with the K+ efflux from muscle during the depolarization-repolarization process of the sarcolemmal membrane during muscle contraction. Causes of shift of K+ out of cells i.e. Hyperkalemia: Insulin deficiency Beta adrenergic antagonist Acidosis Hyperosmolarity Inhibitors of Sodium potassium ATPase pump Exercise Cell lysis Causes of shift of K+ into cells i.e. Hypokalemia: Insulin Beta adrenergic agonist Alkalosis Hypoosmolarity

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