HESI LPN
Adult Health 2 Exam 1
1. What is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space?
- A. Filtration
- B. Diffusion
- C. Osmosis
- D. Active transport
Correct answer: C
Rationale: The correct answer is C: Osmosis. Osmosis is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space to maintain cellular balance. In osmosis, water moves across a semi-permeable membrane from an area of low solute concentration (hypotonic) to an area of high solute concentration (hypertonic). This process helps regulate the water content inside cells. Choices A, B, and D are incorrect. Filtration involves the movement of solutes and solvents through a membrane due to a pressure difference, diffusion is the movement of solutes from an area of high concentration to low concentration, and active transport requires energy to move substances against their concentration gradient.
2. When taking blood pressure at the brachial artery, the nurse should place the client's arm in which position?
- A. Slightly above the level of the heart
- B. At the level of the heart
- C. At a level of comfort for the client
- D. Below the level of the heart
Correct answer: B
Rationale: When taking blood pressure at the brachial artery, it is crucial to place the client's arm at the level of the heart to ensure accurate measurement. Placing the arm above or below the heart level can lead to incorrect readings. Option A, placing the arm slightly above the heart level, would result in falsely lower blood pressure readings as gravity would assist in a lower value. Option C, placing the arm at a level of comfort for the client, may not align with the standardized technique required for accurate blood pressure assessment. Option D, placing the arm below the level of the heart, would likely yield falsely higher blood pressure readings due to increased hydrostatic pressure pushing the blood against gravity.
3. The nurse is preparing a client for discharge after a major surgical procedure. What is the priority instruction to include in the discharge teaching?
- A. Signs of infection to monitor for
- B. Pain management techniques
- C. Activity restrictions and safety measures
- D. All of the above
Correct answer: D
Rationale: The correct answer is D: All of the above. Providing comprehensive discharge instructions covering signs of infection to monitor for, pain management techniques, activity restrictions, and safety measures is crucial after a major surgical procedure. Each of these components plays a vital role in the client's recovery and well-being. It is important for the client to understand how to identify signs of infection, manage pain effectively, and adhere to activity restrictions to prevent complications and ensure a smooth recovery process. While each instruction is important on its own, combining all aspects into the discharge teaching ensures that the client has a holistic understanding of their post-operative care, empowering them to take charge of their health and know when to seek further assistance if needed. Choices A, B, and C are essential components of discharge teaching and should all be included to provide the client with comprehensive care instructions.
4. The healthcare provider is assessing a client who has just undergone a thoracentesis. Which finding should be reported immediately?
- A. Diminished breath sounds on the affected side.
- B. Pain at the procedure site.
- C. Blood-tinged sputum.
- D. Shortness of breath.
Correct answer: D
Rationale: Shortness of breath should be reported immediately as it may indicate a pneumothorax, a potential complication of thoracentesis. Diminished breath sounds on the affected side, pain at the procedure site, and blood-tinged sputum are common findings post-thoracentesis and do not necessarily indicate immediate complications like a pneumothorax.
5. A client is prescribed warfarin for the prevention of thromboembolism. What dietary instruction should the nurse provide?
- A. Increase intake of green leafy vegetables
- B. Maintain a consistent intake of vitamin K-rich foods
- C. Avoid all foods containing vitamin K
- D. Consume a high-protein diet
Correct answer: B
Rationale: The correct answer is B. Maintaining a consistent intake of vitamin K-rich foods is important for patients taking warfarin as it helps keep the effects of the medication stable. Choice A is incorrect because while green leafy vegetables are high in vitamin K, they should not be avoided completely but rather consumed consistently. Choice C is also incorrect as avoiding all foods containing vitamin K can lead to fluctuations in warfarin's effectiveness. Choice D is incorrect as a high-protein diet is not specifically recommended for patients taking warfarin.
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