The nurse is caring for a client who is in the oliguric phase of acute kidney injury (AKI). During this phase of AKI, the nurse might anticipate which of the following findings?

Choice A reason: Insight into mental health problems varies individually and is not a defining feature of voluntary versus involuntary commitment. Both types of patients may lack insight, especially in severe mental illness, making this statement inaccurate as a legal or procedural distinction between commitment types.

Choice B reason: Involuntary commitment, under laws like a 302, restricts a client’s ability to initiate discharge due to assessed danger to self or others. Voluntary clients can request discharge, though medical advice may apply. This legal distinction defines the difference, making it the correct answer.

Choice C reason: Involuntary clients cannot universally refuse treatment, as court-ordered interventions may apply in cases of imminent danger. Both voluntary and involuntary clients have rights to refuse non-emergent treatment, but this is not the primary legal distinction between commitment types, making this option incorrect.

Choice D reason: Aggression is not a defining characteristic of voluntary commitment. Both voluntary and involuntary clients may exhibit aggression, depending on their mental health condition. The distinction lies in legal control over discharge, not behavior, making this statement inaccurate for defining commitment types.

Choice A reason: Hypocalcemia may occur in AKI due to impaired vitamin D activation, but it is not a primary concern in the diuresis phase, where kidneys produce large urine volumes. Calcium imbalances are less immediate than fluid losses, which can rapidly destabilize hemodynamics during this phase.

Choice B reason: In the diuresis phase of AKI, kidneys regain function, producing excessive urine, which can lead to hypovolemia. Fluid loss depletes intravascular volume, causing hypotension, tachycardia, and organ hypoperfusion. Monitoring is critical to prevent dehydration and ensure adequate fluid replacement to maintain hemodynamic stability during recovery.

Choice C reason: Increased blood pressure is more common in the oliguric phase of AKI due to fluid overload. In the diuresis phase, excessive urine output reduces volume, potentially lowering blood pressure. Hypertension is not a typical complication during this phase, making it an incorrect focus for monitoring.

Choice D reason: Hyperkalemia is a concern in the oliguric phase of AKI due to reduced potassium excretion. In the diuresis phase, increased urine output facilitates potassium clearance, reducing hyperkalemia risk. Hypovolemia from excessive fluid loss is a more immediate concern during this phase of AKI recovery.