Correct Answer: D

Rationale: Hematuria is a sign of bleeding, which is a potential complication of heparin therapy. Immediate intervention is required to manage the bleeding and adjust the heparin dosage if necessary. Localized warmth, calf pain, and swelling in the affected leg are common findings in clients with DVT and receiving heparin therapy. While these symptoms should be monitored, hematuria indicates a more serious issue requiring immediate attention.

Correct Answer: A

Rationale: Corrected Rationale: The correct procedure for a client with a large pleural effusion is thoracentesis. Thoracentesis is a diagnostic and therapeutic procedure used to remove fluid from the pleural space, which can help relieve symptoms associated with pleural effusion. Choice B (Endotracheal intubation) is incorrect as it is a procedure to secure the airway by placing a tube into the trachea. Choice C (Chest tube insertion) is incorrect as it is typically done to drain air or fluid from the pleural space over a longer period. Choice D (Bronchoscopy) is incorrect as it is a procedure used to visualize the airways and diagnose lung conditions, not specifically for pleural effusion removal.

Correct Answer: D

Rationale: Obtaining serum acetaminophen levels is critical in determining the level of toxicity and guiding treatment. It helps to assess the risk of hepatotoxicity and determine the need for antidotal therapy with N-acetylcysteine. Assessing the child's level of consciousness (Choice A) is important but obtaining serum acetaminophen levels takes precedence as it directly guides the specific treatment required. Activated charcoal (Choice B) is not routinely used in acetaminophen poisoning. While notifying the poison control center (Choice C) is important, obtaining serum acetaminophen levels should be the immediate action to assess the child's condition and guide treatment.

Correct Answer: A

Rationale: An allergy to shellfish often indicates an allergy to iodine, which is used in contrast dyes for CT scans. This poses a significant risk of an allergic reaction during the procedure. The nurse must ensure appropriate precautions or alternative imaging are considered. Choices B, C, and D are not directly contraindicated for a CT scan with contrast. Smoking history, metformin use, and controlled hypertension do not typically impact the safety or feasibility of the procedure.

Correct Answer: B

Rationale: The correct answer is B. Rifampin can cause red-orange discoloration of bodily fluids, including urine, saliva, and tears. This is a harmless side effect, but clients should be informed beforehand to prevent alarm. Choice A is incorrect as orange-colored urine is not a sign of kidney dysfunction related to rifampin. Choice C is incorrect because rifampin is more commonly associated with liver toxicity rather than kidney dysfunction. Choice D is incorrect as vision changes are not a typical side effect of rifampin.