A patient is prescribed an electrolyte replacement. How should the nurse explain the purpose of an electrolyte to the patient?
a. Any substance that enhances a chemical reaction
b. A chemical that can conduct electricity when dissolved in water
c. A substance that uses electrical current to attach to receptor sites
d. A substance secreted by a gland and carries messages to target tissues
ANS: B
B. Electrolytes are chemicals that can conduct electricity when dissolved in water. Examples of electrolytes are sodium, potassium, calcium, magnesium, acids, and bases. A. A substance that enhances a chemical reaction is a catalyst. C. A substance that uses electrical current to attach to receptor sites does not define any substance having to do with an electrolyte. D. A substance secreted by a gland that carries messages to target tissues is a hormone.
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