Patients taking lithium should be instructed to drink adequate amounts of fluids and take adequate amounts of sodium. Select the reason for this instruction.
A. Hyponatremia promotes the retention of lithium, which can lead to toxic levels of lithium in the blood.
B. Lithium is a salt and leads to an increase in thirst and an increase in the frequency of urination.
C. Sodium ions and lithium ions compete against each other for renal elimination.
D. All of the above are correct.
Answer: D
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