A 28-year-old woman from rural Maharashtra presents with fatigue, dyspnea on exertion, and recurrent infections for 6 months. She has had 3 pregnancies in the last 4 years, all vaginal deliveries. Dietary intake is predominantly vegetarian with minimal fortified foods. On examination: pallor present, spoon nails noted, heart rate 102/min, BP 110/70 mmHg. Laboratory findings: Hb 7.2 g/dL, MCV 62 fL, MCH 18 pg, serum ferritin 8 ng/mL, TIBC 420 µg/dL, serum iron 32 µg/dL. Peripheral smear shows hypochromic microcytic RBCs with occasional target cells. What is the most appropriate initial management?

Explanation

## Clinical Diagnosis **Key Point:** This patient has iron deficiency anemia (IDA) with clear etiology — multiple pregnancies, vegetarian diet, and poor socioeconomic access to fortified foods in rural India. ### Diagnostic Confirmation | Parameter | Finding | Interpretation | |-----------|---------|----------------| | Hb | 7.2 g/dL | Moderate anemia | | MCV | 62 fL | Microcytic (< 80 fL) | | MCH | 18 pg | Hypochromic (< 27 pg) | | Serum ferritin | 8 ng/mL | **Depleted iron stores** (normal > 30) | | TIBC | 420 µg/dL | Elevated (normal 250–425) | | Serum iron | 32 µg/dL | Low (normal 60–170) | | Transferrin saturation | ~7.6% | **< 16% confirms IDA** | **Clinical Pearl:** Spoon nails (koilonychia) are a late sign of chronic IDA and indicate severe, prolonged iron depletion. ### Management Algorithm ```mermaid flowchart TD A[Iron Deficiency Anemia Confirmed]:::outcome --> B{Severity & Hemodynamic Status?}:::decision B -->|Hb > 7, stable, no cardiorespiratory distress| C[Oral iron therapy]:::action B -->|Hb < 7 OR hemodynamically unstable| D[Consider transfusion + IV iron]:::action C --> E[Ferrous sulfate 200 mg daily<br/>with vitamin C]:::action E --> F[Recheck Hb at 4 weeks<br/>expect rise 1-2 g/dL]:::action F --> G[Continue 3 months after<br/>Hb normalization]:::action G --> H[Investigate cause<br/>if not obvious]:::outcome D --> I[Transfuse 2 units PRBCs<br/>if Hb < 5 or symptomatic]:::action I --> E ``` ### Why Oral Iron is First-Line Here 1. **Hb 7.2 g/dL with stable hemodynamics** — no acute cardiorespiratory compromise. 2. **Oral absorption intact** — no malabsorption, no GI surgery mentioned. 3. **Cost-effective and safe** — critical in resource-limited rural settings. 4. **Ferrous sulfate 200 mg** provides ~60 mg elemental iron; add vitamin C (ascorbic acid 200 mg) to enhance absorption in the acidic stomach. 5. **Expected response:** Reticulocytosis in 3–5 days, Hb rise of 1–2 g/dL per week. **High-Yield:** In India, IDA in women of reproductive age is the leading cause of anemia. Oral iron is the WHO-recommended first-line therapy unless there is malabsorption, intolerance, or severe anemia with hemodynamic compromise. ### Counseling Points - Take iron on an empty stomach (or with vitamin C juice, not tea/coffee) for optimal absorption. - Expect black stools and possible GI upset (constipation, nausea). - Compliance is critical — 3 months minimum even after Hb normalizes (to replete stores). - Address underlying cause: dietary counseling, family planning, screen for occult GI bleed if non-vegetarian. **Mnemonic: ORAL IRON FIRST — Oral, Replete stores, Assess response, Lifestyle (diet), Iron dose (ferrous), Recheck labs, Ongoing 3 months, Nutritional counseling**