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?
A.
Fingerstick glucose.
B.
Serum electrolytes and ammonia.
C.
Stool color and character.
D.
Serum hepatic enzymes.
The correct answer and Explanation is :
The correct answer is C. Stool color and character.
Explanation:
Hepatic encephalopathy is a condition that arises from liver dysfunction, leading to the accumulation of toxins like ammonia in the bloodstream, which then affects brain function. Lactulose is a non-absorbable disaccharide used to treat hepatic encephalopathy by reducing the levels of ammonia in the blood. It works by trapping ammonia in the colon and converting it into a non-absorbable form that is then excreted through stool.
Assessment of Stool Color and Character is the most direct way to evaluate the therapeutic response to lactulose. Here’s why:
- Effectiveness of Lactulose: Lactulose promotes bowel movements and works as an osmotic laxative, so its effectiveness can be observed by the frequency, consistency, and color of the stool. The medication typically leads to more frequent, softer stools. This increase in stool output helps in the elimination of ammonia from the body.
- Indicator of Ammonia Reduction: As lactulose helps in lowering ammonia levels by converting it to a form that can be excreted, the color and character of stool can reflect the effectiveness of this process. The stool might be lighter in color, and patients often experience increased bowel movements.
Other Assessments:
- Fingerstick Glucose (A): This is not directly related to assessing lactulose’s effectiveness in treating hepatic encephalopathy. It is used to monitor blood glucose levels, which might be affected by other conditions or treatments.
- Serum Electrolytes and Ammonia (B): While monitoring serum ammonia levels is important for managing hepatic encephalopathy, the stool assessment provides a more practical and immediate indication of how effectively lactulose is working, as it shows how well the drug is reducing ammonia in the gastrointestinal tract.
- Serum Hepatic Enzymes (D): Monitoring liver enzymes can provide information about liver function, but it does not directly measure the effectiveness of lactulose in reducing ammonia levels or improving hepatic encephalopathy symptoms.
Therefore, stool color and character offer a clear and immediate assessment of lactulose’s effectiveness in managing hepatic encephalopathy.