HESI LPN
Adult Health 2 Exam 1
1. What is the primary function of neutrophils?
- A. Heparin secretion
- B. Transport oxygen
- C. Phagocytotic action
- D. Antibody formation
Correct answer: C
Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.
2. A client with a history of seizure disorder who is receiving phenytoin (Dilantin) is being discharged. Which instruction should the nurse provide?
- A. Take the medication at bedtime.
- B. Monitor drug levels regularly.
- C. Avoid alcohol while taking this medication.
- D. Take the medication at the same time every day.
Correct answer: B
Rationale: The correct answer is to instruct the client to monitor drug levels regularly. This is crucial for phenytoin (Dilantin) to ensure that the medication levels are within the therapeutic range and to prevent toxicity. Choice A, taking the medication at bedtime, is not specifically required for phenytoin administration. Choice C, avoiding alcohol, is generally a good practice with medications but is not as critical as monitoring drug levels for phenytoin. Choice D, taking the medication at the same time every day, is important for consistency but does not address the specific monitoring needs of phenytoin.
3. The nurse is caring for a client who is scheduled for surgery in the morning. The client reports drinking a glass of water at midnight. What should the nurse do?
- A. Notify the anesthesiologist
- B. Document the intake in the medical record
- C. Cancel the surgery
- D. Instruct the client to fast until the surgery
Correct answer: A
Rationale: The correct answer is to notify the anesthesiologist. When a client reports drinking water close to the time of surgery, it is important to inform the anesthesiologist as it can impact the administration of anesthesia. The anesthesiologist needs this information to make decisions regarding anesthesia administration. Documenting the intake in the medical record is important for documentation purposes, but the immediate action needed is to inform the anesthesiologist. Canceling the surgery is not necessary based solely on the intake of water; the anesthesiologist will determine the appropriate course of action. Instructing the client to fast until the surgery may not be appropriate without consulting the anesthesiologist first, as the situation needs to be assessed by the anesthesia team.
4. The nurse is caring for a client who is postoperative following a hip replacement. Which intervention is most important to prevent dislocation of the prosthesis?
- A. Keep the client in a low Fowler's position.
- B. Maintain hip abduction with pillows.
- C. Encourage early ambulation.
- D. Place the client in a prone position.
Correct answer: B
Rationale: Maintaining hip abduction with pillows is the most important intervention to prevent dislocation of the hip prosthesis postoperatively. This position helps keep the hip joint stable and prevents excessive internal rotation, which can lead to dislocation. Keeping the client in a low Fowler's position (Choice A) does not provide the necessary support and stability for the hip joint. While early ambulation (Choice C) is important for preventing complications such as blood clots and promoting circulation, it is not the most crucial intervention for preventing dislocation. Placing the client in a prone position (Choice D) can be harmful and increase the risk of dislocation.
5. The nurse is caring for a client who underwent a total knee replacement yesterday. What activity level should the nurse encourage today?
- A. Bed rest with bathroom privileges only
- B. Frequent, short walks with assistance
- C. Range of motion exercises to the knee every four hours
- D. Leg elevation to reduce swelling
Correct answer: B
Rationale: After a total knee replacement, early ambulation is crucial for promoting circulation and preventing complications like thrombosis. Bed rest should be avoided as it can increase the risk of complications. Range of motion exercises are important but should be performed gradually and not excessively. Leg elevation is beneficial for reducing swelling but should not be the primary activity level encouraged immediately after surgery.
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