Which of the following clinical findings should the nurse expect in a client with acute kidney injury?
Explanation & Rationale
Choice A reason: A glomerular filtration rate of 100 mL/min is within the normal range (>90 mL/min), indicating healthy kidney function. In acute kidney injury, the GFR is typically reduced due to impaired filtration, leading to accumulation of waste products. This finding is not expected and suggests the kidneys are functioning normally. Choice B reason: Oliguria, or reduced urine output (<400 mL/day), is a hallmark of acute kidney injury due to decreased renal perfusion or tubular damage. This leads to fluid retention, electrolyte imbalances, and toxin accumulation, making it a critical finding that requires immediate intervention to prevent further renal damage and systemic complications. Choice C reason: Hypokalemia is not typical in acute kidney injury; instead, hyperkalemia is common due to impaired potassium excretion by damaged kidneys. Low potassium levels may occur in other conditions like diuretic use but are not expected here, as AKI disrupts the kidneys’ ability to regulate electrolytes effectively. Choice D reason: Weight loss is not a primary finding in acute kidney injury; fluid retention often causes weight gain due to decreased urine output. Weight loss may occur in chronic conditions but is less relevant acutely, as fluid and electrolyte imbalances are more immediate concerns in AKI management.