A 3-year-old child presents to the emergency department in septic shock secondary to pneumonia. Regarding fluid resuscitation in pediatric shock, all of the following statements are correct EXCEPT:

Question

Accepted Answer

C. Hypotonic fluids such as 0.45% saline are preferred for initial resuscitation in hypovolemic shock. ## Pediatric Shock Resuscitation: Fluid Management Principles

**Key Point:** Isotonic crystalloids (0.9% normal saline or Ringer's lactate) are the first-line fluids for pediatric shock resuscitation. Hypotonic solutions are contraindicated in acute shock states.

### Correct Statements (Options 0, 2, 3)

| Statement | Rationale |
|-----------|----------|
| **20 mL/kg bolus over 15–30 min** | Standard PALS/APLS guideline for initial resuscitation in hypovolemic and septic shock |
| **Reassess after each bolus** | Allows titration to clinical endpoints (improved perfusion, urine output, mental status) |
| **Inotropes after 2 boluses** | If shock persists despite adequate fluid resuscitation, inotropic support (dopamine, dobutamine, epinephrine) becomes indicated |

### Why Hypotonic Fluids Are Wrong (Option 1)

**High-Yield:** Hypotonic fluids (0.45% saline, 5% dextrose in water) cause:
- Rapid shift of fluid from intravascular to intracellular compartment
- Worsening of intravascular hypovolemia in shock
- Risk of cerebral edema, especially in sepsis
- Loss of osmotic gradient needed to maintain circulating volume

**Clinical Pearl:** Hypotonic fluids are used *only* for maintenance therapy in stable, euvolemic children — never for resuscitation of shock.

**Mnemonic:** **ISOTONIC = SHOCK** — use isotonic fluids for acute volume expansion; save hypotonic for maintenance.

### Shock Resuscitation Algorithm

```mermaid
flowchart TD
  A[Pediatric Shock Suspected]:::outcome --> B[Assess perfusion: cap refill, BP, urine output]:::decision
  B --> C[Establish IV/IO access]:::action
  C --> D[Bolus 20 mL/kg isotonic crystalloid over 15-30 min]:::action
  D --> E{Perfusion improved?}:::decision
  E -->|Yes| F[Continue maintenance + reassess]:::action
  E -->|No| G[Repeat bolus × 1]:::action
  G --> H{Perfusion improved?}:::decision
  H -->|Yes| F
  H -->|No| I[Start inotropes: dopamine/epinephrine]:::action
  I --> J[Consider vasopressors if hypotensive]:::action
  J --> K[Treat underlying cause]:::action
```

[cite:PALS Provider Manual 2020]

Answer

A. Rapid bolus of 20 mL/kg of isotonic crystalloid should be administered over 15–30 minutes as first-line fluid resuscitation

Answer

B. After the first bolus, reassessment of perfusion status should guide further fluid administration

Answer

D. Inotropic support should be considered if perfusion does not improve after 2 boluses of crystalloid

A 3-year-old child presents to the emergency department in septic shock secondary to pneumonia. Regarding fluid resuscitation in pediatric shock, all of the following statements are correct EXCEPT:

Explanation

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