HESI Fundamentals Practice Exam

Correct Answer: D

Rationale: The correct instruction for a UAP caring for a client with MRSA under contact precautions is to don a gown and gloves when entering the client's room. This precaution is essential to prevent the spread of MRSA and protect both the client and the healthcare worker from potential infection. Choice A is incorrect because visitors should not be restricted solely based on contact precautions. Choice B is incorrect as wearing sterile gloves is not necessary, standard precautions with regular gloves are sufficient. Choice C is incorrect because the client wearing a mask is not a standard practice for contact precautions; it is the healthcare worker who should take preventive measures.

Correct Answer: A

Rationale: The correct dietary instruction for a client taking warfarin is to avoid foods high in vitamin K. Warfarin is an anticoagulant that works by inhibiting vitamin K-dependent clotting factors. Consuming foods high in vitamin K, such as leafy green vegetables, can antagonize the effects of warfarin, potentially leading to treatment inefficacy or fluctuations in anticoagulation levels. Therefore, clients on warfarin therapy should be advised to avoid foods high in vitamin K to maintain the effectiveness of the medication. Choices B, C, and D are incorrect because increasing leafy green vegetables (choice B) would introduce more vitamin K, consuming a consistent amount of foods high in potassium (choice C) is not directly related to warfarin therapy, and limiting high-protein foods (choice D) is not a specific concern for clients on warfarin therapy.

Correct Answer: A

Rationale: The most appropriate position for a client following abdominal surgery is Semi-Fowler's. This position promotes greater thoracic expansion and reduces pressure on the suture line, aiding in respiratory function and preventing strain on the incision site. Choices B, C, and D are incorrect. Prone position (Choice B) would not be suitable after abdominal surgery as it can put pressure on the abdomen. Supine position (Choice C) may cause discomfort and strain on the incision area. Sim's position (Choice D) is primarily used for rectal exams and enemas, which are unrelated to the needs post-abdominal surgery.

Correct Answer: C

Rationale: To maintain patency and ensure proper medication delivery, water should be instilled into the feeding tube between administering the two medications. This helps prevent clogging of the tube and ensures that both medications are delivered effectively without interference from remnants of the previous medication. Diluting the medications with sterile water before administration (choice A) is unnecessary and may alter the medication concentration. Mixing the medications in one syringe (choice B) could lead to interactions or chemical reactions between the medications. Withdrawing fluid from the tube before instilling each medication (choice D) is not required and may increase the risk of tube displacement or misplacement.

Correct Answer: D

Rationale: Restricting dietary sodium intake (D) is the most critical intervention for a client with fluid volume excess to prevent further fluid retention. Encouraging increased fluid intake (A) would exacerbate the issue by adding more fluid to the body. Placing the client in a high Fowler's position (B) is more relevant for respiratory issues than fluid volume excess. While measuring intake and output (C) is important for assessing fluid balance, restricting sodium intake is the priority as it helps manage fluid levels more effectively by reducing fluid retention.