Question

A nurse reviewing routine laboratory values for several clients who are taking lithium carbonate. Which of the following clients should the nurse assess further for findings indicating lithium toxicity?

A) Client A: Serum lithium level of 1.2 mEq/L
B) Client B: Serum lithium level of 0.8 mEq/L
C) Client C: Serum lithium level of 1.6 mEq/L
D) Client D: Serum lithium level of 1.0 mEq/L

Answer 1

Client C, with a serum lithium level of 1.6 mEq/L, should be assessed further for lithium toxicity as this level is above the generally accepted therapeutic range.

Step-by-step explanation:

The nurse should assess Client C, who has a serum lithium level of 1.6 mEq/L, for findings indicating lithium toxicity. The therapeutic range for serum lithium levels is generally considered to be between 0.6 to 1.2 mEq/L. Serum lithium levels above 1.5 mEq/L are usually considered to be in the toxic range and can result in symptoms such as nausea, vomiting, diarrhea, confusion, and tremors. Serum lithium levels need to be carefully monitored to prevent toxicity, especially since the therapeutic range is relatively narrow.