Correct Answer: B

Rationale: A footboard is the correct choice to prevent plantar flexion contractures by maintaining proper alignment of the feet. Plantar flexion contractures involve the foot pointing downward, and a footboard helps keep the foot in a neutral position. Choice A, the sheepskin heel pad, is used for pressure ulcer prevention and comfort but does not specifically address plantar flexion contractures. Choice C, the trochanter roll, is used for hip positioning, not foot alignment. Choice D, the abduction pillow, is used to maintain proper positioning of the legs but does not directly address plantar flexion contractures.

Correct Answer: B

Rationale: The correct answer is B. The client with renal failure and high potassium levels requires immediate attention because hyperkalemia can lead to life-threatening cardiac complications. Administering sodium polystyrene sulfonate helps lower the potassium levels. Choice A, the client with pneumonia and a high WBC count, although important, does not present an immediate life-threatening condition. Choice C, the post-CABG client prescribed atorvastatin, and Choice D, the client with anemia and a hemoglobin level of 11g/dL prescribed epoetin alfa, do not require immediate intervention compared to managing hyperkalemia in a client with renal failure.

Correct Answer: B

Rationale: Covering the tracheostomy when outside is crucial as it helps prevent dust and other irritants from entering the airway, reducing the risk of complications. Cleaning with alcohol (choice A) can be too harsh for the skin around the tracheostomy site. While replacing the tube weekly (choice C) is important, it is typically done by healthcare providers. Using tap water to clean (choice D) is not recommended as it may introduce contaminants to the tracheostomy site.

Correct Answer: C

Rationale: The correct answer is C because white rice is a low-fiber food suitable for a low-fiber diet, making it an appropriate choice. Choices A, B, and D are incorrect because fresh pear, refried beans, and bran cereal are high-fiber foods and not suitable for a low-fiber diet.

Correct Answer: A

Rationale: Administering oral antibiotics is within the scope of practice for an LPN and can be safely delegated. LPNs are trained to administer medications, including oral ones. Performing an admission assessment (Choice B) involves critical thinking and comprehensive evaluation, typically done by registered nurses. Creating new teaching material (Choice C) requires specialized knowledge and is usually the responsibility of a nurse with additional training in education. Administering IV conscious sedation (Choice D) is a high-risk task that requires advanced skills and should be performed by a registered nurse or higher-level provider.