The nurse is caring for a client with end-stage renal disease (ESRD) who is anuric and receives hemodialysis three times a week. During a routine assessment, the patient expresses frustration about strict fluid restrictions and states, “I don’t even make urine anymore, so why does it matter how much I drink?” Which of the following is the most appropriate response by the nurse?

Choice A reason: Hypoglycemia involves low blood glucose, causing symptoms like shakiness or confusion, not muscle weakness or arrhythmias. Hypertonic glucose and insulin would worsen hypoglycemia by increasing glucose uptake, and sodium bicarbonate is irrelevant. These symptoms and treatments align with hyperkalemia, not low glucose levels, in renal failure.

Choice B reason: Hyperkalemia, common in acute renal failure due to impaired potassium excretion, causes muscle weakness and cardiac arrhythmias by altering membrane potentials. Hypertonic glucose and insulin drive potassium into cells, while sodium bicarbonate corrects acidosis, stabilizing cardiac membranes, making this the targeted complication for the prescribed treatment.

Choice C reason: Hypernatremia (high sodium) causes neurological symptoms like confusion, not muscle weakness or arrhythmias. The prescribed treatments do not address sodium levels; insulin and glucose manage potassium, and bicarbonate corrects acidosis. Hypernatremia is not a primary concern in acute renal failure with these symptoms.

Choice D reason: Hypokalemia (low potassium) causes muscle weakness and arrhythmias but is rare in acute renal failure, where hyperkalemia is typical due to reduced excretion. The prescribed treatments aim to lower potassium, not increase it, making hypokalemia an incorrect target for this therapy in the context of renal failure.

Choice A reason: The right to do no harm (nonmaleficence) is an ethical principle, not a specific client right. While premature restraints may cause harm, this option does not directly address the legal right violated, which is the use of least restrictive interventions, making it less precise.

Choice B reason: Informed consent involves agreeing to treatments, not the use of restraints, which is a safety intervention. While clients should be informed, premature restraint use violates the right to least restrictive care, not consent, as restraints are not typically consensual interventions.

Choice C reason: Confidential and respectful care relates to privacy and dignity, not the method of intervention. Premature restraints violate the principle of using less invasive options first, not confidentiality or respect, making this right irrelevant to the specific violation described in the scenario.

Choice D reason: The right to least restrictive treatment requires using non-invasive interventions (e.g., de-escalation) before restraints. Premature restraint use violates this right, as mental health laws mandate the least coercive measures to ensure safety, prioritizing patient autonomy and minimizing harm, making this the correct answer.