Correct Answer: A

Rationale: The correct signs of hyperkalemia include elevated potassium levels and muscle weakness. The treatment involves administering calcium gluconate to help stabilize the heart. Choice B is incorrect as hyperkalemia is characterized by elevated, not decreased, potassium levels. Choice C is incorrect as hyperkalemia does not involve elevated sodium levels, and the treatment is not sodium bicarbonate. Choice D is incorrect as hyperkalemia does not lead to low sodium levels, and sodium chloride is not the treatment for hyperkalemia.

Correct Answer: B

Rationale: When a client with a tracheostomy is experiencing respiratory distress, the immediate priority for the nurse is to suction the tracheostomy. This action helps clear the airway of secretions and ensures that the client can breathe effectively. Increasing the oxygen flow rate may be necessary but addressing the airway obstruction is more critical. Notifying the physician immediately is important but may cause a delay in addressing the immediate need for airway clearance. Administering a bronchodilator may help with bronchospasm but should not take precedence over ensuring a clear airway in a client with respiratory distress.

Correct Answer: B

Rationale: The correct intervention to prevent venous thromboembolism in a postoperative client following hip replacement is to administer anticoagulant therapy as prescribed. Anticoagulants help prevent blood clots from forming. Instructing the client to perform ankle pumps helps prevent blood clots by promoting circulation. Maintaining the client in a prone position can increase the risk of venous stasis and thrombus formation. Encouraging the client to ambulate as tolerated also helps prevent venous thromboembolism by promoting blood flow and preventing stasis.

Correct Answer: B

Rationale: The best strategy to promote independence in self-care for a client concerned about extreme fatigue after an acute myocardial infarction is to instruct the client to gradually resume self-care tasks, with rest periods. This approach allows the client to regain independence without overexerting. Choice A is incorrect because encouraging the client to rest completely and letting the healthcare team take over self-care tasks may hinder independence. Choice C is incorrect as assigning assistive personnel to complete self-care tasks does not promote the client's independence. Choice D is not the best option as the primary focus should be on empowering the client to perform self-care tasks independently.

Correct Answer: C

Rationale: The correct answer is C: Disorganized speech. Disorganized speech is a hallmark symptom of schizophrenia, characterized by impaired thought processes that lead to incoherent, disjointed communication. All-or-nothing thinking (Choice A) is more commonly associated with cognitive distortions seen in conditions like anxiety disorders. Euphoric mood (Choice B) is not a typical finding in schizophrenia, as individuals with this disorder often display a flat or blunted affect. Hypochondriasis (Choice D) involves a preoccupation with having a serious illness and is not a primary symptom of schizophrenia.