A nurse is assisting with teaching a class about the importance of fire safety. Which of the following hazards should the nurse include as an example of the leading cause of residential fires?

Choice A reason: Sitting positions the belt restraint safely at the waist, minimizing injury risk. It allows breathing and circulation, critical when managing aggression safely.

Choice B reason: Tying to bed rails restricts mobility excessively, risking injury if the bed moves. Proper restraint secures to a fixed frame, not rails.

Choice C reason: Chest placement impairs breathing, a dangerous error in restraint use. Belt restraints belong at the waist to avoid respiratory compromise.

Choice D reason: Under-clothing application risks skin abrasion and monitoring issues. Restraints over clothes ensure visibility and safety, per standard aggression protocols.

Choice A reason: Dry mucous membranes signal dehydration, not hyperkalemia directly. High potassium affects cardiac and nerve function, not mucosal hydration status in renal failure.

Choice B reason: Hyperactive reflexes occur in hypocalcemia, not hyperkalemia. Excess potassium depresses nerve and muscle activity, often reducing reflexes instead of enhancing them.

Choice C reason: Trousseau’s sign indicates hypocalcemia, with carpal spasm from cuff pressure. Hyperkalemia in renal failure doesn’t trigger this; it’s a calcium issue.

Choice D reason: Irregular heart rate, like bradycardia or arrhythmias, stems from hyperkalemia’s effect on cardiac conduction. In renal failure, potassium excess disrupts rhythms critically.