The new nurse and experienced nurse are changing a dressing for a client with a burn injury who has had a skin graft.
The new nurse asks the experienced nurse why the grafted skin appears lattice-like. How should the experienced nurse respond?

Circumferential full-thickness burns to the chest create an inelastic eschar that restricts thoracic excursion. Knowledge of burn pathophysiology and respiratory mechanics is needed to identify life-threatening restrictive lung disease and the urgent need for a surgical escharotomy.

Choice A rationale

High pressure ventilator alarms occur when the ventilator meets resistance while delivering a breath. While this indicates a problem, it is a machine notification of the physiological restriction caused by the chest eschar and not the root observation.

Choice B rationale

Increasing peak pressures reflect decreased lung compliance or increased airway resistance. In this scenario, the pressures rise because the chest wall cannot expand, but the mechanical measurement is secondary to the physical assessment of chest movement.

Choice C rationale

Decreased thoracic expansion in a circumferential burn patient indicates the eschar is acting as a tourniquet. This prevents lung inflation, leading to rapid respiratory failure. This physical finding confirms the immediate need for an emergency escharotomy.

Choice D rationale

A SpO2 of 90 percent indicates hypoxemia, which is a significant clinical sign. However, it is a late manifestation of the underlying mechanical restriction. The priority is identifying the physical cause, which is the lack of expansion.

This scenario requires the application of neurovascular pathophysiology and clinical assessment skills. Understanding the distinct presentation of intracranial bleeding versus ischemic events is essential, specifically focusing on the relationship between sudden onset severe headache, projectile vomiting, and extreme hypertension in neurological emergencies.

Choice A rationale

Embolic strokes usually present with sudden focal deficits but rarely cause a thunderclap headache or significant vomiting unless brainstem involvement occurs. They result from a dislodged clot traveling to cerebral arteries, often during physical activity or exertion.

Choice B rationale

Hemorrhagic stroke involves the rupture of a blood vessel, leading to increased intracranial pressure. This pressure triggers the classic triad of sudden severe headache, vomiting, and altered consciousness, often accompanied by dangerously high blood pressure readings.

Choice C rationale

Transient ischemic attacks represent temporary blockages of blood flow that resolve within twenty-four hours without permanent damage. These episodes do not typically cause severe hypertension, vomiting, or prolonged unresponsiveness characteristic of a major intracranial event.

Choice D rationale

Thrombotic strokes are caused by gradual narrowing of an artery due to plaque, often manifesting during sleep or rest. The onset is typically slower than a hemorrhage and lacks the sudden, explosive headache and vomiting.