Step 1: Clinical features of malabsorption.
Malabsorption occurs when nutrients from food are not properly absorbed in the intestines.
Typical clinical symptoms include chronic diarrhea, steatorrhea, and weight loss.
Step 2: Supportive diagnostic features.
- Chronic diarrhea is a hallmark feature.
- Biochemical tests may show deficiencies (iron, vitamin B12, folate, fat-soluble vitamins).
- Weight loss is common due to nutrient deficiency.
Step 3: Exclusion of wrong options.
- Recent exposure to hepatitis (B) is not related to malabsorption, it is linked to liver disease.
- Change in stool color (C) may indicate liver/bile disorders but is not a classical feature of malabsorption.
Step 4: Conclusion.
The correct features included in the scheme are: A (chronic diarrhea), D (biochemical findings), and E (weight loss).