Among the following, which is NOT a symptom of acute lithium toxicity?

• A. Coma
• B. Dehydration
• C. Slurred speech
• D. Uncontrollable eye movement

Answer: (B)

Dehydration is not typically classified as a symptom of acute lithium toxicity. Acute lithium toxicity is mainly characterized by neurological and gastrointestinal symptoms that stem from elevated lithium levels in the body, which can affect various bodily systems.

When lithium toxicity occurs, symptoms often include severe confusion or coma, slurred speech, and uncontrollable eye movement (nystagmus). These indicators reflect the impact of lithium on the central nervous system and its effects on coordination and cognitive function.

Dehydration, while it can exacerbate the risk for increased lithium levels due to a decrease in renal clearance, is not a direct symptom of toxicity itself. Therefore, in cases of acute lithium toxicity, the focus is on neurological impairments rather than hydration status as a symptom. Understanding these distinctions is crucial for proper assessment and intervention in patients with potential lithium-related issues.