Correct Answer: A

Rationale: Seeing halos around lights is a classic symptom of digoxin toxicity. The nurse should assess the client's digoxin level to determine if the dose needs to be adjusted or if the medication should be held. Increasing fluid intake or checking blood pressure would not directly address the symptom of halos around lights. Administering a dose of potassium is not indicated without knowing the digoxin level and could potentially worsen the toxicity.

Correct Answer: D

Rationale: Purulent drainage suggests an infection at the wound site. Reviewing the culture and sensitivity results will guide appropriate antibiotic treatment by identifying the causative organisms and their antibiotic sensitivities. Elevated white blood cells indicate infection but do not specify the organism. Creatinine and hemoglobin values are unrelated to wound infections.

Correct Answer: C

Rationale: When a pediatric client is taking propranolol, the nurse should instruct the parents to report signs of overdose, including bradycardia. Propranolol is a beta-blocker that can lead to dangerously slow heart rate as a sign of overdose. While increased respiratory rate, seizures, and irritability may occur in some cases, bradycardia is the most critical symptom indicating an overdose of this medication.

Correct Answer: C

Rationale: The correct answer is C. Oxygen saturation levels below 95% indicate hypoxia and require immediate intervention. A heart rate of 88 beats per minute, a blood pressure of 100/60, and a respiratory rate of 16 are within normal ranges and do not require immediate intervention. Oxygen saturation is a critical parameter reflecting the client's oxygenation status.

Correct Answer: D

Rationale: Instructing the client to sit upright while eating is crucial to prevent aspiration in stroke clients. This position helps in safe swallowing and reduces the risk of food or liquid entering the airway. Encouraging the client to take large bites of food (Choice A) can increase the risk of choking and aspiration. Advising the client to eat quickly (Choice B) may lead to fatigue and compromise safe swallowing. Offering thin liquids (Choice C) can also increase the risk of aspiration in stroke clients, as thicker liquids are usually recommended to prevent aspiration.