A client with hepatic encephalopathy is receiving lactulose. Which assessment provides the nurse with the nest information to evaluate the client’s therapeutic response to the drug?

Lactulose is a medication commonly used in the management of hepatic encephalopathy. It works by reducing the absorption of ammonia in the gut, which is a toxin that can accumulate in the blood in patients with liver dysfunction. Monitoring serum electrolytes and ammonia levels can help the nurse evaluate the effectiveness of lactulose therapy. Elevated ammonia levels can indicate that the medication is not effectively reducing ammonia absorption and may require adjustment in dose or frequency. Additionally, monitoring electrolyte levels can help detect any imbalances that may occur because of lactulose therapy. Fingerstick glucose levels (option A) are not relevant to evaluating the therapeutic response of lactulose in hepatic encephalopathy. Stool color and character (option C) may be monitored to assess the side effects of lactulose, such as diarrhea, but are not the best assessments to evaluate therapeutic response. Serum hepatic enzymes (option D) may be useful in assessing the severity of liver disease but are not the best assessment to evaluate the therapeutic response of lactulose in hepatic encephalopathy.