A nurse is reinforcing teaching with a client who has bipolar disorder and has a new prescription for lithium.To address possible adverse effects, the nurse should include that which of the following laboratory values will be monitored while the client is taking this medication?

Choice A rationaleLiver enzymes (such as ALT and AST) are primarily monitored for medications known to cause liver toxicity. While lithium can have various side effects, it is not typically associated with significant liver damage requiring routine monitoring of liver enzyme levels. Normal ranges for ALT are typically 7 to 55 units per liter (U/L) for men and 5 to 40 U/L for women, and for AST are typically 10 to 40 U/L for men and 9 to 32 U/L for women.Choice B rationaleLithium is a mood stabilizer with a narrow therapeutic range, and its levels are closely linked to sodium balance in the body. Hyponatremia (low sodium levels) can increase the risk of lithium toxicity because the kidneys reabsorb lithium in an attempt to compensate for the sodium loss. Therefore, regular monitoring of serum sodium levels is crucial to ensure lithium remains within the therapeutic range (typically 0.6 to 1.2 mEq/L for maintenance) and to prevent toxicity. Normal serum sodium levels are generally 135 to 145 mEq/L.Choice C rationaleUric acid levels are primarily monitored in conditions like gout or kidney disease, or as a side effect of certain medications affecting purine metabolism. Lithium does not typically have a significant impact on uric acid levels requiring routine monitoring. Normal uric acid levels are typically 3.5 to 7.2 mg/dL for men and 2.6 to 6.0 mg/dL for women.Choice D rationaleErythrocyte sedimentation rate (ESR) is a non-specific marker of inflammation in the body. While lithium can have various effects, it is not typically associated with significant changes in ESR that would necessitate routine monitoring. Normal ESR values are generally 0 to 15 mm/hr for men and 0 to 20 mm/hr for women. .