During the early phase of burn care, the nurse should assess the patient for

UPPSC 2017

Medical & Surgical Nursing

Medium

Appeared in: UPPSC 2017

Explanation

The early or emergent phase of a burn (first 24-48 hours) involves massive cellular destruction.
Potassium, being a primary intracellular ion, is released in large quantities from damaged cells into the bloodstream.
This rapid shift leads to hyperkalemia (elevated serum potassium), which poses a significant and immediate risk of life-threatening cardiac dysrhythmias.
Therefore, assessing for hyperkalemia is a critical priority in early burn management.

Option B: While hyponatremia (low sodium) also occurs in the early phase due to fluid shifting from the vascular to the interstitial space (third-spacing), it is not as immediately life-threatening as the cardiac effects of hyperkalemia.
Option C: Hypernatremia (high sodium) is not characteristic of the early phase. It is more likely to develop later, during the acute phase, due to factors like excessive water loss or administration of hypertonic fluids.
Option D: Burn patients in the early phase typically develop metabolic acidosis, not alkalosis. This is due to decreased tissue perfusion (shock) leading to anaerobic metabolism and the production of lactic acid.

Clinical Relevance

Nursing practice connection: Use the key finding related to Electrolyte imbalances during the emergent phase of burn injury to guide bedside assessment, documentation, and the next nursing action.
A nurse's primary role in early burn care is vigilant monitoring for complications. Recognizing the signs of hyperkalemia on an ECG (tall, peaked T-waves, widened QRS) is a critical skill that can prevent cardiac arrest.
Accurate fluid resuscitation using formulas like the Parkland formula is essential to maintain tissue perfusion, which helps limit acidosis and supports kidney function to excrete excess potassium.
What if? If the patient was in the acute phase (48-72 hours post-burn) instead of the early phase, the nurse would be assessing for the opposite problem: hypokalemia. As fluid shifts back into the vascular space and diuresis occurs, potassium is excreted, and levels can drop dangerously low.

How to Approach the Question

First, identify the key terms in the question: 'early phase' and 'burn care'. This specifies the timeframe as the emergent/resuscitative phase (the first 24-48 hours).
Recall the primary pathophysiological events of this phase: massive cell damage and a major fluid shift (capillary leak).
Consider the consequences of massive cell damage. Cells are full of potassium. When they rupture, potassium floods the bloodstream, causing hyperkalemia.
Consider the consequences of the fluid shift. Fluid, plasma proteins, and sodium move out of the blood vessels into the tissues, causing edema and hyponatremia.
Evaluate the options based on this pathophysiology. Hyperkalemia is a direct and immediate result of cell death. Hyponatremia also occurs. Hypernatremia and metabolic alkalosis are incorrect for this phase.
Prioritize the most life-threatening imbalance. The cardiac effects of hyperkalemia make it the most critical assessment priority among the choices.

Concept Tested & Keywords

Concept Tested: Electrolyte imbalances during the emergent phase of burn injury.
Stem keywords: early phase, burn care, assess
Lead-in keywords: assess for

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E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 60-62

E6 Nursing Fundamentals Taylor p. 778-780