A 10-year-old child with 35% total body surface area (TBSA) burns is admitted to the pediatric burn unit. The child has circumferential burns on both legs.

Circumferential burns can cause compartment syndrome, compromising circulation. Assessing peripheral pulses and capillary refill hourly is the priority to detect early signs of impaired circulation, which may require emergency escharotomy. Other interventions are important but not immediate priorities in this context.

Understanding the Priority: Compartment Syndrome in Circumferential Burns

The correct answer is 3. Assess peripheral pulses and capillary refill in both legs every hour. This action is the highest priority because the child has circumferential burns on both legs, which creates a unique and immediate threat to limb viability.

The Pathophysiology of the Threat
When a burn is circumferential, the damaged, inelastic eschar (dead tissue) forms a tight, unyielding band around the extremity. As edema develops in the underlying tissues—a natural response to the burn injury and fluid resuscitation—the eschar does not stretch. This causes pressure within the confined fascial compartments to rise dramatically, leading to compartment syndrome. The rising pressure first collapses the low-pressure venous and lymphatic systems, further worsening edema, and eventually compromises arterial inflow. Unchecked, this process leads to irreversible muscle and nerve ischemia, potentially resulting in limb loss ^[3].

Why Frequent Neurovascular Assessment is the Priority
The earliest and most critical indicators of developing compartment syndrome are the "5 Ps," with pain (especially out of proportion to the injury and with passive stretch) and paresthesia being the earliest signs. However, in a 10-year-old child who may be sedated, intubated, or unable to articulate these subtle changes, objective circulatory assessments become paramount. Assessing peripheral pulses and capillary refill every hour provides a direct, objective window into arterial perfusion pressure. A progressive diminution or loss of a previously palpable pulse, or a capillary refill time that slows to >2 seconds, is a late but definitive sign that compartment pressure is critically high and requires immediate intervention, such as an escharotomy ^[3]. This monitoring allows the nurse to detect the problem and alert the provider before irreversible damage occurs.

Analyzing the Other Options
While all options are components of comprehensive burn care, they do not address the most immediate, limb-threatening complication unique to this patient's injury pattern.

- 1. Apply topical antimicrobial cream to all burn areas: This is a critical intervention for infection prevention but is not the immediate priority. The primary survey and initial stabilization of a burn patient focus on threats to airway, breathing, and circulation, which includes peripheral circulation to burned extremities. Infection control is addressed later, during the wound care phase .
- 2. Insert a urinary catheter to monitor fluid balance: This is an essential intervention for a patient with a 35% TBSA burn. Strict monitoring of urine output is the gold standard for assessing the adequacy of fluid resuscitation and end-organ perfusion. However, this monitors global perfusion, not the localized ischemic threat to the legs from circumferential eschar. Establishing global hemodynamic stability is concurrent with, but does not supersede, the need to rule out a localized compartment syndrome ^[3].
- 4. Administer prescribed pain medication before wound care: Pain management is a cornerstone of compassionate and effective burn care, especially before painful procedures like dressing changes. However, in the initial assessment and stabilization phase, the nurse's first task is to identify and mitigate immediate life- or limb-threatening conditions. Administering pain medication before a focused neurovascular assessment could mask the critical early symptom of compartment syndrome—severe, escalating pain—delaying diagnosis and treatment ^[3].

The nurse's immediate priority is to establish a baseline and then serially monitor the neurovascular status of the limbs at risk to ensure perfusion is maintained, making the hourly assessment of pulses and capillary refill the most critical action.