Q.

Effects of electrolyte changes:

A. PR interval increases in hyperkalaemia
B. in hyperkalaemia, the heart stops in systole
C. hypercalcaemia causes prolongation of the ST segments
D. hypernatraemia is associated with low voltage electrocardiographic complexes
E. magnesium counteracts digitalis toxicity
Answer» E. magnesium counteracts digitalis toxicity

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Physiology

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