A nurse is receiving a Lab Report of a patient with Liver Cirrhosis, in which she notes an increased ammonia level. Which of the following diets CHO/nurse will direct for the patient?

Appeared in: Uttarakhand CHO - 2021

Explanation

In liver cirrhosis, the liver's ability to detoxify substances is impaired.
Protein metabolism produces ammonia as a waste product.
A healthy liver converts toxic ammonia into non-toxic urea, which is then excreted by the kidneys.
In a cirrhotic liver, this conversion fails, causing ammonia to accumulate in the blood.
High ammonia levels are neurotoxic and lead to hepatic encephalopathy, a state of confusion, altered consciousness, and coma.
Restricting dietary protein is the primary intervention to reduce the production of ammonia and manage or prevent hepatic encephalopathy.

Option A: While a high carbohydrate diet is a necessary part of the overall dietary plan to provide energy and spare protein, it is not the primary intervention to lower ammonia levels. The core problem is the excess ammonia from protein, which must be addressed directly.
Option B: A moderate fat intake is recommended to ensure adequate calorie intake and improve the taste of food, but it does not directly impact ammonia levels. It is a secondary consideration after protein and carbohydrates.
Option C: A high protein diet is contraindicated and dangerous in this situation. It would increase the amount of ammonia produced, worsening the hyperammonemia and accelerating the progression of hepatic encephalopathy.

Clinical Relevance

Nursing practice connection: Use the key finding related to Dietary management for a patient with liver cirrhosis and hyperammonemia to guide bedside assessment, documentation, and the next nursing action.
Nurses play a crucial role in monitoring for signs of hepatic encephalopathy, such as confusion, lethargy, and asterixis (flapping tremor of the hands).
Patient and family education on the importance of dietary restrictions is a key nursing responsibility to ensure compliance and prevent complications.
Administering prescribed medications like Lactulose, which helps excrete ammonia through the stool, is a common nursing intervention.

How to Approach the Question

First, identify the patient's diagnosis: Liver Cirrhosis.
Next, note the critical lab finding: increased ammonia level. This is the key piece of data.
Recall the pathophysiology: The liver processes protein byproducts. In cirrhosis, this function fails, and ammonia (a protein byproduct) builds up.
Connect the problem to the solution: Since ammonia comes from protein, the logical intervention is to reduce the source of the problem.
Evaluate the options: A 'Low protein' diet directly addresses the high ammonia. 'High carbohydrate' and 'Moderate fat' are supportive but not the primary solution. 'High protein' would worsen the condition.

Concept Tested & Keywords

Concept Tested: Dietary management for a patient with liver cirrhosis and hyperammonemia.
Stem keywords: Liver Cirrhosis, Lab Report, increased ammonia level, diet
Lead-in keywords: direct for the patient
Clinical cues: The combination of liver cirrhosis and increased ammonia is a strong indicator for impending or current hepatic encephalopathy, making protein restriction the top priority.

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E6 Nutrition Kumud Khanna 2e pp. 280-282, 276-278

Practise the full Uttarakhand CHO - 2021

Attempt every question from this paper in a timed mock, then review the full solution for each one.