Correct Answer: C

Rationale: The correct answer is C, Pulmonary embolism. Pulmonary embolism is a critical complication of thrombophlebitis where a blood clot dislodges and travels to the lungs, obstructing blood flow. This obstruction can lead to chest pain, shortness of breath, and potentially fatal consequences, making it a life-threatening emergency that requires prompt intervention. Choices A, B, and D are incorrect because pneumonia, pulmonary edema, and myocardial infarction are not directly associated with thrombophlebitis and would not present with the sudden onset of chest pain and shortness of breath in this context.

Correct Answer: C

Rationale: The correct answer is C: Hypokalemia. Furosemide, a loop diuretic, commonly causes potassium loss, leading to hypokalemia. The nurse should closely monitor for decreased potassium levels in a client receiving furosemide to prevent complications such as cardiac arrhythmias or muscle weakness. Hyperkalemia (Choice A) is not typically associated with furosemide use. Hypernatremia (Choice B) refers to high sodium levels and is not the primary concern with furosemide. Hyponatremia (Choice D) is low sodium levels, which can occur but is less common than hypokalemia in clients taking furosemide.

Correct Answer: B

Rationale: Corrected Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. Monitoring for a slow heart rate is crucial as it indicates potential toxicity. Hypertension, hyperglycemia, and insomnia are not typically associated with digoxin toxicity. Hypertension is more commonly seen in other conditions, hyperglycemia is not a typical sign of digoxin toxicity, and insomnia is not a recognized symptom of digoxin toxicity.

Correct Answer: B

Rationale: Spinach is high in vitamin K, which can interfere with the effectiveness of warfarin. It is important for clients taking warfarin to maintain consistent levels of vitamin K intake to ensure the medication works properly. Foods rich in vitamin K, such as spinach, can counteract the effects of warfarin, leading to potential complications. Therefore, clients on warfarin are advised to either avoid or consume vitamin K-rich foods, like spinach, in consistent amounts to maintain the medication's efficacy. Bananas, oranges, and yogurt are not high in vitamin K and do not significantly impact the effectiveness of warfarin, making them safe options for clients taking this medication.

Correct Answer: A

Rationale: Corrected Rationale: When taking docusate sodium, it is important to take the medication with a full glass of water to help ensure its proper effectiveness. This helps prevent the stool from hardening and makes it easier to pass, especially for individuals experiencing constipation. Choice B is incorrect because there is no specific instruction to take docusate sodium at bedtime. Choice C is incorrect because docusate sodium does not need to be taken on an empty stomach. Choice D is incorrect because there is no need to avoid taking docusate sodium with antacids.