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 suggests 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 deficits, and Choice D indicates neck pain and stiffness, which are not related to Kernig's sign.

Correct Answer: C

Rationale: The correct answer is C because a CPAP device delivers a preset amount of positive airway pressure continuously throughout all inspiration and expiration cycles. Choice A is incorrect because CPAP does not deliver inspiratory pressure at the beginning of each breath; it provides continuous positive pressure. Choice B is incorrect because CPAP typically delivers a constant pressure rather than having a feature that changes pressure throughout the cycle. Choice D is incorrect as CPAP does not deliver positive pressure specifically at the end of each breath; it maintains a consistent pressure throughout the breathing cycle.

Correct Answer: D

Rationale: The correct intervention for a client who has a seizure disorder is to position the client on their side during a seizure. This helps to prevent aspiration and ensures a patent airway. Keeping a padded tongue depressor near the bedside (Choice A) is not recommended as it can cause injury during a seizure. Placing a pillow under the client's head during a seizure (Choice B) is also not advised as it can obstruct the airway. Administering diazepam intravenously at the onset of seizures (Choice C) is not typically done at home without healthcare provider direction.

Correct Answer: D

Rationale: The nurse's priority action should be to verify the prescription with the provider. This is crucial to prevent injury from fluid volume overload and rapid potassium infusion. Verifying the prescription ensures that the correct solution, rate, and additives are ordered according to the client's condition. While evaluating the patency of the IV is important, verifying the prescription takes precedence to ensure patient safety. Consulting with the pharmacist can be beneficial, but confirming the prescription with the provider is the immediate priority. Teaching the client about IV extravasation is important but is not the first action the nurse should take in this scenario.

Correct Answer: C

Rationale: The correct answer is C: Raisins. Raisins are a good source of iron, making them beneficial for a client at high risk for iron deficiency anemia. Yogurt (Choice A), apples (Choice B), and cheddar cheese (Choice D) are not significant sources of iron. Other iron-rich foods include dried fruits, red meat, and green leafy vegetables.