Correct Answer: B

Rationale: A positive Kernig's sign is identified when a client is unable to extend their leg completely without pain after hip flexion. This finding indicates meningeal irritation. Choices A, C, and D do not describe Kernig's sign. Choice A describes a normal plantar reflex, choice C refers to coordination issues, and choice D describes neck pain and stiffness, which are not specific to Kernig's sign.

Correct Answer: B

Rationale: The correct answer is to monitor the client's skin under the halo vest. This is important to assess for signs of skin issues such as excessive sweating, redness, or blistering, which can lead to skin breakdown and infection. Choice A is incorrect because inspecting the pin site every 4 hours is necessary but not the priority in this case. Choice C is incorrect as it is not essential for two personnel to hold the halo device during repositioning. Choice D is incorrect because applying powder frequently can actually increase the risk of skin issues by clogging pores and causing irritation.

Correct Answer: D

Rationale: The correct answer is D because clients with Alzheimer's disease can be prone to wandering and getting lost. Providing supervision can help prevent injuries and ensure their safety. Choices A, B, and C are incorrect because explaining procedures clearly, encouraging varied activities, and using simple communication are important but not specifically focused on the safety aspect of preventing clients from getting lost or injured.

Correct Answer: C

Rationale: The client presents with bradycardia, diaphoresis, and chest pain, indicating reduced cardiac output. Atropine is the appropriate choice as it increases heart rate by blocking the parasympathetic nervous system. Lidocaine is used for ventricular arrhythmias, Adenosine for supraventricular tachycardia, and Verapamil for controlling heart rate in atrial fibrillation or atrial flutter. These medications are not suitable for the client's current presentation.

Correct Answer: B

Rationale: The correct answer is B: 'Consume high-calorie, high-protein foods.' Clients with COPD often have increased energy needs due to the work of breathing. Consuming high-calorie, high-protein foods can help provide the necessary energy and prevent weight loss. Choice A is incorrect because eating three large meals daily may lead to increased shortness of breath due to a full stomach. Choice C is incorrect because limiting caffeinated drinks is important, but the recommendation should focus on reducing intake, not specifying a number. Choice D is incorrect because drinking fluids during mealtime can lead to early satiety, making it difficult for the client to consume enough calories.