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. The nurse is providing preoperative teaching to a client who will undergo a thyroidectomy. What information should the nurse include about postoperative care?
- A. Importance of maintaining neck stability
- B. How to care for the surgical drain
- C. Pain management strategies
- D. All of the above
Correct answer: D
Rationale: Providing preoperative teaching for a client undergoing a thyroidectomy is essential to prepare them for postoperative care. Information about the importance of maintaining neck stability is crucial to prevent complications such as strain on the surgical site. Teaching the client how to care for the surgical drain is important to prevent infections, ensure proper wound healing, and aid in monitoring postoperative recovery. Pain management strategies are vital to ensure the client's comfort and promote optimal recovery. Including all these aspects in preoperative teaching ensures the client is well-prepared for comprehensive postoperative care. Therefore, the correct answer is D because all these elements are essential components of postoperative care for a client undergoing a thyroidectomy. Choices A, B, and C are all important aspects of postoperative care that the nurse should include in the preoperative teaching session.
3. The client with hypertension is being taught about lifestyle changes. Which recommendation is most important to include?
- A. Increase sodium intake
- B. Engage in regular physical activity
- C. Consume a diet high in saturated fats
- D. Limit fluid intake
Correct answer: B
Rationale: Engaging in regular physical activity is crucial for managing hypertension as it helps lower blood pressure. Regular exercise can improve heart health, increase circulation, and contribute to overall well-being, all of which are beneficial for individuals with hypertension. Choice A, increasing sodium intake, is incorrect as reducing sodium is recommended for hypertension to help lower blood pressure. Choice C, consuming a diet high in saturated fats, is incorrect as a diet high in saturated fats can negatively impact blood pressure and cardiovascular health. Choice D, limiting fluid intake, is incorrect as maintaining adequate hydration is important for overall health and not directly related to hypertension management.
4. A client with diabetes mellitus is scheduled for surgery. What is the most important preoperative instruction the nurse should provide?
- A. Take your insulin as usual
- B. Do not eat or drink after midnight
- C. Monitor your blood glucose closely
- D. Bring your glucose meter to the hospital
Correct answer: B
Rationale: The most important preoperative instruction for a client with diabetes mellitus scheduled for surgery is to instruct them not to eat or drink after midnight. This instruction is crucial to maintain NPO (nothing by mouth) status before surgery, reducing the risk of aspiration during anesthesia. While taking insulin as usual (Choice A) is important, doses can be adjusted by the healthcare team. Monitoring blood glucose closely (Choice C) is essential but not as critical preoperatively. Bringing a glucose meter to the hospital (Choice D) can be helpful but is not as vital as maintaining NPO status.
5. The healthcare provider is preparing to administer an intramuscular injection to an adult client. Which site is the preferred location for this injection?
- A. Deltoid muscle.
- B. Vastus lateralis muscle.
- C. Ventrogluteal muscle.
- D. Dorsogluteal muscle.
Correct answer: C
Rationale: The ventrogluteal site is preferred for intramuscular injections in adults due to its muscle mass and lower risk of nerve injury. The deltoid muscle is more commonly used for vaccines in adults, the vastus lateralis muscle is preferred in infants and young children, and the dorsogluteal muscle is associated with a higher risk of nerve injury and is no longer recommended for intramuscular injections.
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