In cases of acetaminophen toxicity, which laboratory result is likely to be elevated?

In cases of acetaminophen toxicity, the laboratory result that is likely to be elevated is alanine aminotransferase (ALT). Acetaminophen overdose can lead to hepatotoxicity, where the liver cells become damaged as a result of excessive acetaminophen levels. One of the first indicators of liver damage is an increase in liver enzymes, particularly ALT. This enzyme is released into the bloodstream when the liver cells are injured, making it a key marker for assessing liver function and damage.

The other options, while they may be relevant in different contexts, do not specifically relate to acetaminophen toxicity in the same way. Potassium, calcium, and cholesterol levels can be influenced by a variety of factors and conditions but are not direct indicators of liver damage caused by acetaminophen overdose. Therefore, monitoring ALT levels in cases of suspected acetaminophen toxicity is crucial for diagnosing and assessing the severity of liver injury.