📌 Definition
Celiac Disease is a chronic, autoimmune disorder in which ingestion of gluten (a protein in wheat, rye, and barley) triggers immune-mediated inflammation and damage to the small intestinal mucosa, resulting in malabsorption.
🧠 Anatomy & Physiology
- Small intestine: Site of nutrient absorption; lined with villi and microvilli to maximize surface area.
- In celiac disease, immune response to gluten damages villi, leading to villous atrophy and decreased absorption.
- Results in malabsorption of nutrients, vitamins, and minerals.
⚠️ Etiology: Causes & Risk Factors
- Genetic predisposition: HLA-DQ2 or HLA-DQ8 genes.
- Environmental: Exposure to gluten-containing foods.
- Other autoimmune diseases (type 1 diabetes, thyroiditis) increase risk.
- Family history of celiac disease.
🩺 Symptomatology
- Gastrointestinal: Chronic diarrhea, steatorrhea (fatty stools), bloating, abdominal pain, flatulence, weight loss.
- Malabsorption: Fatigue, iron-deficiency anemia, vitamin deficiencies, growth failure in children.
- Dermatitis herpetiformis (itchy, blistering skin rash).
- Osteopenia/osteoporosis (calcium and vitamin D malabsorption).
- Neurologic symptoms (peripheral neuropathy, ataxia).
🔁 General Pathophysiology (Simplified)
- Ingestion of gluten triggers abnormal immune response in susceptible individuals.
- Autoimmune inflammation targets small intestine villi (especially proximal intestine).
- Villous atrophy, crypt hyperplasia, and lymphocytic infiltration develop.
- Impaired absorption of nutrients, vitamins, minerals; complications of malnutrition ensue.
🧪 Medical Management
🔬 Labs & Diagnostics
- Serologic tests: Anti-tTG (tissue transglutaminase) IgA, anti-endomysial IgA antibodies.
- Total serum IgA (to rule out IgA deficiency).
- Small bowel biopsy: Confirms diagnosis (villous atrophy, crypt hyperplasia).
- Genetic testing: HLA-DQ2/DQ8 in unclear cases.
💊 Medications/Treatment
- Strict lifelong gluten-free diet: Only effective treatment—removes all sources of wheat, rye, and barley.
- Correct nutritional deficiencies: Iron, folic acid, vitamin B12, calcium, vitamin D.
- Monitor for complications: Osteoporosis, anemia.
- Refractory celiac disease (rare): May need steroids or immunosuppressants.
🧑⚕️ Nursing Management: 5 Key Interventions
- Educate on a strict gluten-free diet, label reading, and avoiding cross-contamination.
- Monitor for improvement in symptoms and growth (children) after dietary changes.
- Assess for signs of malnutrition, anemia, and bone health.
- Provide resources and referrals to dietitians and celiac support groups.
- Teach about risk of associated autoimmune conditions and need for ongoing follow-up.
🩹 Possible Priority Nursing Diagnoses
- Imbalanced nutrition: Less than body requirements related to malabsorption.
- Deficient knowledge related to gluten-free diet and disease management.
- Risk for impaired growth and development (children) related to chronic malnutrition.
