MCQ: Septic Shock in Children

Correct Answer: B. Compensated septic (warm) shock

Explanation: Septic Shock in Children

This child has suspected compensated septic shock with a warm-shock clinical pattern. Fever suggests infection, while tachycardia, elevated serum lactate, reduced urine output, and abnormal peripheral perfusion indicate possible impaired tissue perfusion despite preserved systolic blood pressure.

The findings supporting a warm-shock pattern include:

• Warm extremities

• Bounding peripheral pulses

• Brisk capillary refill (approximately 1 second)

• Tachycardia

• Elevated serum lactate

• Reduced urine output

Children may maintain their blood pressure during the early stages of shock through compensatory mechanisms. Therefore, normal blood pressure does not exclude shock, and hypotension is a concerning sign of more advanced circulatory failure. Lactate elevation and reduced urine output support concern about impaired perfusion but are not specific to septic shock.

Traditionally, warm septic shock is described as a hyperdynamic state with reduced systemic vascular resistance and relatively increased cardiac output. However, the Surviving Sepsis Campaign advises against classifying pediatric septic shock as warm or cold using bedside clinical signs alone. The full clinical assessment, response to treatment, and advanced hemodynamic assessment when available should guide management.

Why the Other Options Are Incorrect

A. Cardiogenic shock

Cardiogenic shock results from inadequate cardiac output due to cardiac dysfunction. It may present with cool extremities, weak pulses, prolonged capillary refill, hepatomegaly, or pulmonary edema. These findings are not described in this scenario, although their absence does not completely exclude cardiac dysfunction.

B. Compensated septic (warm) shock

Correct. The combination of suspected infection, tachycardia, warm extremities, bounding pulses, brisk capillary refill, elevated lactate, and reduced urine output is consistent with suspected compensated septic shock with a warm-shock pattern. Preserved blood pressure does not rule out shock.

C. Decompensated hypovolemic shock

Hypovolemic shock commonly produces tachycardia, reduced peripheral perfusion, weak pulses, cool extremities, and prolonged capillary refill. Hypotension may develop as compensation fails. The warm extremities, bounding pulses, and brisk capillary refill in this scenario are less typical of the classic hypovolemic pattern.

D. Obstructive shock

Obstructive shock occurs when blood flow is mechanically impeded, as in cardiac tamponade or tension pneumothorax. The clinical findings provided do not specifically suggest one of these conditions.

E. Septic (cold) shock

The traditional cold-shock pattern includes cool or mottled extremities, weak peripheral pulses, and prolonged capillary refill, often associated with reduced cardiac output and increased systemic vascular resistance. The child’s findings instead suggest a warm-shock pattern. However, bedside signs alone cannot reliably establish the underlying hemodynamics.

Key Learning Point

Children can have compensated shock despite normal blood pressure. Suspect impaired perfusion when a child with possible infection has abnormal mental status, persistent tachycardia, elevated lactate, or reduced urine output.

Features traditionally associated with warm septic shock include:

• Warm extremities

• Bounding peripheral pulses

• Brisk capillary refill

• Possible wide pulse pressure

• Possible elevated lactate and reduced urine output

Early recognition, prompt antimicrobial treatment, and careful hemodynamic reassessment are essential. Fluid resuscitation should be individualized and reassessed frequently for response and signs of fluid overload. Vasoactive treatment may be required when shock persists.

Find high yield board review MCQ on cold septic shock management. 

External Resources

1. Surviving Sepsis Campaign — 2026 International Pediatric Guidelines

2. Surviving Sepsis Campaign — Pediatric Guidelines, Society of Critical Care Medicine

3. WHO — Paediatric Emergency Triage, Assessment and Treatment

References 

1. Weiss SL, Peters MJ, Alhazzani W, Agus MSD, Flori HR, Inwald DP, et al. Surviving Sepsis Campaign international guidelines for the management of septic shock and sepsis-associated organ dysfunction in children. Pediatr Crit Care Med. 2020;21(2)–e106. doi: 10.1097/PCC.0000000000002198. Free full text.

2. Weiss SL, Peters MJ, Alhazzani W, Agus MSD, Flori HR, Inwald DP, et al. Surviving Sepsis Campaign international guidelines for the management of septic shock and sepsis-associated organ dysfunction in children. Intensive Care Med. 2020;46(Suppl 1):10–67. doi: 10.1007/s00134-019-05878-6.

3. World Health Organization. Paediatric emergency triage, assessment and treatment: care of critically-ill children. Geneva: World Health Organization; 2016. Available from: https://www.who.int/publications/i/item/9789241510219.