HESI Fundamentals Exam

Correct Answer: C

Rationale: The correct instruction the nurse should include is to rotate injection sites within the same body area. This practice helps prevent lipodystrophy, a condition characterized by the thickening or thinning of subcutaneous fat at the injection sites, which can affect insulin absorption. Choice A is incorrect because administering insulin in the same area each time can lead to lipodystrophy. Choice B is incorrect as insulin should be stored according to the manufacturer's instructions, which may include refrigeration. Choice D is incorrect because the angle of insulin injection (usually 90 degrees) is determined by the length of the needle and the amount of subcutaneous fat, not a fixed 45-degree angle.

Correct Answer: C

Rationale: The nurse's priority should be to eliminate safety hazards from the client's environment as it directly reduces the risk of falls. Addressing environmental hazards is an immediate and crucial step in preventing falls. While completing a fall-risk assessment is important to understand the client's risk factors, educating the client and family about fall risks is essential for prevention, and ensuring the use of assistive aids is crucial for safety, eliminating safety hazards takes precedence as it directly mitigates the risk of falls.

Correct Answer: A

Rationale: The correct answer is A. Taking warfarin at the same time every day is essential to maintain a consistent blood level of the medication. This statement indicates that the client understands the teaching about the importance of consistency in medication timing. Choice B, regarding using a soft-bristled toothbrush, is not directly related to warfarin therapy and does not assess the client's understanding of warfarin administration. Choice C suggesting taking warfarin at bedtime is incorrect; it is generally recommended to take warfarin at the same time each day to avoid variations in drug levels. Choice D about avoiding foods high in vitamin K is relevant as vitamin K can interfere with warfarin's anticoagulant effects. However, it is not the best indicator of understanding the teaching on medication timing, which is crucial for warfarin efficacy.

Correct Answer: A

Rationale: Weight loss is a common finding in clients with hyperthyroidism due to increased metabolic activity. Hyperthyroidism leads to an overactive thyroid gland, which results in an increased metabolic rate and often leads to weight loss despite a normal or increased appetite. Cold intolerance (Choice B) is more commonly associated with hypothyroidism, where the body's processes slow down. Bradycardia (Choice C) is a slow heart rate, which is not typically seen in hyperthyroidism; rather, tachycardia or an increased heart rate is more common. Dry skin (Choice D) is also not a typical finding in hyperthyroidism, as the skin is more likely to be warm and moist due to increased metabolic activity.

Correct Answer: C

Rationale: Encouraging bed rest and quiet activities is crucial for a child recovering from a splenectomy with low hemoglobin and hematocrit levels. This approach helps conserve energy, promotes healing, and allows the body to focus on rebuilding red blood cells. Limiting milk and milk products (Choice A) is not directly related to improving the child's condition. Encouraging bed rest and quiet activities (Choice B) is appropriate as it helps in conserving energy and preventing physical exertion. Promoting a diet rich in iron (Choice D) is beneficial for improving hemoglobin levels in the long term, but immediate rest and recovery take precedence in this scenario.