Correct Answer: D

Rationale: Ventricular fibrillation is a life-threatening arrhythmia characterized by chaotic, asynchronous contractions of the ventricles, resulting in ineffective cardiac output. This leads to the absence of a palpable pulse. Nurses should be prepared to initiate immediate interventions such as defibrillation to restore normal cardiac rhythm in a client experiencing ventricular fibrillation.

Correct Answer: A

Rationale: The correct answer is A. Tubocurarine chloride is a neuromuscular blocker that works by causing paralysis of skeletal muscles. Therefore, if the client's extremities are paralyzed, it indicates that the medication is effective in achieving the desired muscle relaxation necessary for mechanical ventilation. Choices B and C are incorrect as they suggest muscle activity, which would not be expected with the administration of a neuromuscular blocker. Choice D is unrelated to the effectiveness of tubocurarine chloride.

Correct Answer: C

Rationale: When a patient is prescribed morphine sulfate, the most critical side effect for the nurse to monitor is respiratory depression. Morphine can suppress the respiratory drive, leading to inadequate ventilation and potentially life-threatening consequences. Monitoring the patient's respiratory status closely is essential to promptly identify and manage any signs of respiratory depression.

Correct Answer: B

Rationale: When a client increases their daily doses of acetaminophen for joint pain, it raises concerns about possible liver damage due to acetaminophen overdose. LDH (Lactate Dehydrogenase) levels can indicate liver function, so comparing today's levels with previous ones can help assess for liver damage caused by acetaminophen overuse.

Correct Answer: A

Rationale: The correct answer is hyperglycemia. Prednisone, a corticosteroid, can lead to elevated blood sugar levels as a side effect, particularly in patients with diabetes or those predisposed to developing diabetes. Monitoring for hyperglycemia is crucial to prevent complications like diabetic ketoacidosis and hyperglycemic hyperosmolar syndrome.