Which blood electrolyte level is most important to monitor in the client who has hypertonic dehydration?
A. Sodium
B. Potassium
C. Calcium
D. Magnesium
B
Although all electrolyte levels can be elevated when a client has hypertonic dehydration, the one that is most life-threatening is potassium. Elevated potassium levels (whether an actual elevation or a relative elevation) can lead to bradydysrhythmias and cardiac arrest.
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