Correct Answer: D

Rationale: Sluggish and unequal pupillary responses are indicative of increased intracranial pressure (ICP) in a child with bacterial meningitis and hydrocephalus. This finding suggests that the optic nerve is being compressed due to increased ICP, causing a delay in pupillary reactions. Such a delay is a critical sign of worsening ICP and necessitates immediate intervention. Low blood pressure and increased respiratory rate can occur in various conditions but are less specific to increased ICP than sluggish and unequal pupillary responses, which directly reflect neurological compromise.

Correct Answer: C

Rationale: The correct answer is C, 'Highly protein-bound.' Drugs that are highly protein-bound can displace from protein-binding sites, leading to increased free drug levels in the blood, which can result in toxicity. Monitoring the client for toxicity is crucial when administering highly protein-bound drugs. Choices A, B, and D are incorrect. A short half-life does not necessarily indicate a need for monitoring toxicity; a high therapeutic index indicates a wide safety margin between the effective dose and the toxic dose, reducing the risk of toxicity; low bioavailability refers to the fraction of the drug that reaches the systemic circulation unchanged and does not directly relate to the risk of toxicity.

Correct Answer: B

Rationale: Processed meats should be avoided by clients with hypertension as they are high in sodium, which can contribute to elevated blood pressure. It is essential to limit the intake of high-sodium foods to help manage hypertension. Bananas, low-fat yogurt, and whole grains are generally beneficial for heart health due to their nutrient content and should not be avoided in a heart-healthy diet.

Correct Answer: B

Rationale: The correct first action when a client receiving a blood transfusion develops a fever is to stop the transfusion and notify the healthcare provider. This is crucial to prevent further reactions and ensure prompt intervention. Administering an antipyretic (Choice A) may mask symptoms and delay appropriate treatment. Slowing the rate of the transfusion (Choice C) might not address the underlying cause of the fever. Continuing the transfusion and reassessing in 15 minutes (Choice D) could worsen the client's condition if there is a severe reaction occurring.

Correct Answer: B

Rationale: The best response for a client with schizophrenia experiencing auditory hallucinations is to acknowledge the client's feelings and ask what the voices are saying. This approach helps build rapport with the client, demonstrates empathy, and allows the nurse to assess the content of the hallucinations. Understanding the content is crucial to determine whether the client is at risk of harm. Encouraging the client to ignore the voices (Choice A) may invalidate their experience. Redirecting the conversation (Choice C) may not address the underlying issue of the hallucinations. Offering reassurance (Choice D) without understanding the content may overlook potential risks.