A nurse reviews the laboratory report for a client who is receiving lithium three times daily PO. The client's current blood lithium level is 1.8 mEq/L. The nurse identifies that this lab value indicates which of the following?.
The lithium level is within the therapeutic level for initial treatment.
The lithium level is below the therapeutic treatment level.
The lithium level is at the toxic level.
A blood lithium level of 1.8 mEq/L is not within the maintenance treatment level.
The Correct Answer is C
Choice A rationale:
A lithium level of 1.8 mEq/L is above the therapeutic level for initial treatment (0.8 to 1.4 mEq/L)3.
Choice B rationale:
A lithium level of 1.8 mEq/L is above, not below, the therapeutic treatment level.
Choice C rationale:
A lithium level of 1.8 mEq/L is at the toxic level. A blood lithium level greater than 1.5 mEq/L indicates toxicity.
Choice D rationale:
A lithium level of 1.8 mEq/L is not within the maintenance treatment level (0.4 to 1.3 mEq/L)3.
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Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Drinking green tea does not directly cause lithium toxicity.
Choice B rationale:
Moderate exercise does not directly cause lithium toxicity.
Choice C rationale:
Increasing sodium intake does not directly cause lithium toxicity. In fact, a sudden decrease in sodium intake can increase the risk of lithium toxicity.
Choice D rationale:
Experiencing diarrhea can lead to dehydration, which increases the risk of lithium toxicity by reducing the excretion of lithium.
Correct Answer is A
Explanation
Choice A rationale:
A serum lithium level of 1.6 mEq/L is above the therapeutic range (0.6-1.2 mEq/L) and can cause symptoms such as GI discomfort and poor coordination.
Choice B rationale:
Lip smacking and tongue thrusting are not typically associated with lithium toxicity.
Choice C rationale:
While blurred vision can be a symptom of lithium toxicity, jerking motor movements are not typically associated with this condition.
Choice D rationale:
Fever and fluctuating blood pressure are not typically symptoms of lithium toxicity.
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