A 6-year-old boy from Delhi presents on day 4 of fever with platelet count of 80,000/μL, haematocrit rise of 8% from baseline, and mild abdominal pain. He is alert, has normal blood pressure, and capillary refill is <2 seconds. What is the most appropriate next step in management?

Explanation

## Clinical Context: Dengue Fever with Warning Signs This child meets criteria for **dengue with warning signs** (DHF Grade I): - Platelet count <100,000/μL - Haematocrit rise ≥20% from baseline - Abdominal pain (warning sign) - Absence of shock (normal BP, normal perfusion) ## Management Strategy for DHF Grade I **Key Point:** DHF Grade I without shock is managed conservatively with careful fluid restriction and close monitoring to prevent fluid overload and pulmonary edema. **High-Yield:** The critical principle in dengue management is: - **No shock** → restrict fluids and observe - **Shock present** → cautious IV fluid resuscitation ## Rationale for Correct Answer Admission with: 1. **Fluid restriction to 50 mL/kg/day** — prevents iatrogenic pulmonary edema, a major cause of mortality in dengue 2. **Daily platelet and haematocrit monitoring** — detects progression to higher grades or spontaneous recovery 3. **Observation for shock development** — allows timely IV fluid escalation if needed This approach aligns with WHO and Indian Academy of Pediatrics guidelines for DHF management. ## When to Escalate Fluids ```mermaid flowchart TD A[DHF Grade I - No Shock]:::outcome --> B{Monitoring reveals:}:::decision B -->|Stable vitals, platelets rising| C[Continue restriction + observe]:::action B -->|Worsening haematocrit, falling BP| D[Start IV fluid resuscitation]:::action B -->|Uncontrolled bleeding| E[Platelet transfusion + IV fluids]:::action D --> F[Ringer's lactate 10 mL/kg bolus]:::action F --> G{Response?}:::decision G -->|Yes| H[Repeat bolus if needed]:::action G -->|No| I[Consider ICU transfer]:::urgent ``` **Clinical Pearl:** Platelet transfusion is NOT indicated in DHF Grade I unless there is **active bleeding** or platelet count <10,000/μL with bleeding risk. **Mnemonic: RESTRICT in DHF without shock** — Rest, Restrict fluids, Electrolyte monitoring, Supportive care, Transfusion only if bleeding, Repeat labs daily, Intensive observation, Close follow-up, Transfer if shock. [cite:Park 26e Ch 7]