HESI Fundamentals Practice Exam

Correct Answer: B

Rationale: When a private room is not an option, the best choice is to assign the elderly client with influenza to a double room with another client diagnosed with the same condition. This is ideal as droplet precautions would likely already be in place for the other client, reducing the risk of spreading the infection to other clients in the unit. Choice A is not appropriate as impetigo does not require the same precautions as influenza. Choice C is not ideal as orthopedic surgery does not involve respiratory precautions. Choice D is incorrect because chickenpox requires airborne precautions, which could pose a risk to the elderly client with influenza.

Correct Answer: D

Rationale: To determine the drops per minute for the client, first convert the client's weight from pounds to kilograms: 182/2.2 = 82.73 kg. Calculate the dosage by multiplying 5 mcg by the client's weight in kg: 5 mcg/kg/min 82.73 kg = 413.65 mcg/min. Find the concentration of the solution in mcg/ml by dividing 250 ml by 50,000 mcg (50 mg): 250 ml/50,000 mcg = 200 mcg/ml. As the client needs 413.65 mcg/min and the solution is 200 mcg/ml, the client should receive 2.07 ml per minute. Finally, using the drip factor of 60 gtt/ml, multiply the ml per minute by the drip factor: 60 gtt/ml 2.07 ml/min = 124.28 gtt/min, which rounds to 124 gtt/min. Therefore, the client should receive 124 drops per minute. Choice D is the correct answer. Choices A, B, and C are incorrect because they do not reflect the accurate calculation based on the client's weight, dosage, concentration of the solution, and drip factor.

Correct Answer: D

Rationale: The highest priority nursing diagnosis when planning care for a client with an indwelling urinary catheter is 'High risk for infection.' Indwelling urinary catheters pose a significant risk of infection due to their direct contact with the urinary system. Preventing and managing infections is crucial in the care of these clients. Monitoring for signs of infection, following proper catheter care protocols, and maintaining aseptic technique during catheter maintenance are essential steps to prevent complications associated with catheter-related infections. Choices A, B, and C are not the highest priority because in this case, the immediate concern is the risk of infection associated with the presence of the urinary catheter. While self-care deficit, functional incontinence, and fluid volume deficit are important considerations in overall patient care, they are not as critical as preventing potentially serious infections related to the indwelling urinary catheter.

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: 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.