Correct Answer: A

Rationale: Administering beta-blockers is the initial management for hyperthyroidism to control symptoms such as tachycardia and tremors. Monitoring for signs of thyroid storm is crucial as it is a life-threatening complication of hyperthyroidism. Encouraging a high-protein, low-iodine diet (choice B) is not the primary intervention for managing hyperthyroidism. Monitoring for signs of bradycardia (choice C) is not typically seen in hyperthyroidism, as it often presents with tachycardia. Providing iodine supplements and checking for arrhythmias (choice D) are contraindicated in hyperthyroidism as they can worsen the condition.

Correct Answer: A

Rationale: Administering beta-blockers is the initial management for hyperthyroidism to control symptoms such as tachycardia and tremors. Monitoring for signs of thyroid storm is crucial as it is a life-threatening complication of hyperthyroidism. Encouraging a high-protein, low-iodine diet (choice B) is not the primary intervention for managing hyperthyroidism. Monitoring for signs of bradycardia (choice C) is not typically seen in hyperthyroidism, as it often presents with tachycardia. Providing iodine supplements and checking for arrhythmias (choice D) are contraindicated in hyperthyroidism as they can worsen the condition.

Correct Answer: D

Rationale: During a 12-lead ECG, the client needs to remain still to obtain accurate readings. Therefore, instructing the client to remain still is essential. Choices A, B, and C are incorrect because fasting is not necessary for an ECG, providing a warm blanket is not a standard procedure, and applying cold compresses may interfere with the ECG results.

Correct Answer: B

Rationale: Acetylcysteine is the antidote for acetaminophen overdose. It works by replenishing glutathione, a key component in detoxifying acetaminophen metabolites, thus preventing liver damage. Naloxone is used to reverse opioid overdose, not acetaminophen. Flumazenil is a benzodiazepine antidote. Activated charcoal is used to limit absorption in cases of poisoning, but it is not the antidote for acetaminophen overdose.

Correct Answer: B

Rationale: Weighing the client daily to monitor fluid balance is crucial for clients with heart failure. This intervention helps assess for fluid retention or depletion, providing valuable information for managing the condition effectively. Encouraging increased fluid intake (Choice A) is contraindicated in heart failure as it can worsen fluid overload. Restricting fluid intake during meals (Choice C) may lead to dehydration, which is harmful for clients with heart failure. Limiting daily activity (Choice D) is not recommended as appropriate activity levels should be encouraged for overall well-being, under guidance to prevent excessive fatigue.