🧬 Section 503.1 · Folic Acid Deficiency

Nelson Textbook of Pediatrics 22nd Edition | Folate deficiency causes megaloblastic anemia. High-risk groups: infants on goat's milk, malnourished children, chronic hemolysis, anticonvulsant therapy. Diagnosis: low RBC folate, elevated homocysteine (normal MMA). Treatment: oral folic acid 0.5-1 mg/day.

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📋 30 Clinical Scenarios — Folic Acid Deficiency

📇 High‑Yield Review Cards (Folic Acid Deficiency)

🩺 Clinical Recognition: Folate Deficiency in Children

Select a presentation for diagnostic clues and management.

📋 Stepwise Management of Folic Acid Deficiency

🔑 Key Points — Nelson Section 503.1
• Folate deficiency → megaloblastic anemia in 2-3 months on folate-free diet (limited stores).
• Goat's milk is folate-deficient; regular cow's milk and formula are fortified.
• RBC folate reflects tissue stores better than serum folate.
• Homocysteine ↑, MMA normal (distinguishes from B12 deficiency).
• Treatment: oral folic acid 0.5-1 mg/day; response in 3-7 days (reticulocytosis).

    ⚡ Reflex Prompts — Clinical Decisions in Folate Deficiency

    📖 Summary: Folic Acid Deficiency — Nelson Section 503.1