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. The nurse is caring for a client with an intravenous infusion of normal saline. The client reports pain and swelling at the IV site. What is the nurse’s priority action?
- A. Slow the rate of infusion
- B. Apply a warm compress to the site
- C. Discontinue the IV infusion
- D. Elevate the affected arm
Correct answer: C
Rationale: The correct answer is to discontinue the IV infusion (Choice C). Pain and swelling at the IV site can indicate infiltration or phlebitis, which are serious complications that require immediate action. Slowing the rate of infusion (Choice A) may not address the underlying issue and can potentially worsen the condition. Applying a warm compress (Choice B) may provide temporary relief but does not address the need to discontinue the infusion. Elevating the affected arm (Choice D) is not the priority in this situation; discontinuing the infusion takes precedence to prevent further harm.
3. A client with a cast complains of numbness and tingling in the affected limb. What should the nurse do first?
- A. Check for tightness of the cast
- B. Elevate the limb
- C. Apply ice to the area
- D. Notify the physician
Correct answer: A
Rationale: The correct first action for a client with a cast experiencing numbness and tingling in the affected limb is to check for tightness of the cast. Numbness and tingling can indicate compromised circulation, and a tight cast may be causing this. Checking the cast for tightness is essential to ensure it is not impeding circulation. Elevating the limb, applying ice, or notifying the physician can be subsequent actions depending on the assessment findings after checking the cast. Elevating the limb might help improve circulation, applying ice is not indicated for numbness and tingling, and notifying the physician can be done if the issue persists after addressing the immediate concern of cast tightness.
4. A client who has just been diagnosed with tuberculosis (TB) is being discharged home. Which instruction is most important for the nurse to provide?
- A. Avoid close contact with others until treatment is complete
- B. Take all prescribed medications as directed
- C. Schedule a follow-up appointment with the healthcare provider
- D. Wear a mask when in public places
Correct answer: B
Rationale: The correct answer is B: 'Take all prescribed medications as directed.' This instruction is the most important because adherence to the prescribed medication regimen is crucial in treating tuberculosis effectively and preventing the development of drug-resistant TB. While choice A is important for infection control, ensuring treatment adherence through proper medication intake takes precedence. Choice C is also essential for monitoring progress but is not as critical as ensuring medication compliance. Choice D is relevant for preventing transmission but is not as crucial as ensuring proper treatment by taking medications as directed.
5. What is the primary purpose of a chest tube in a client's care?
- A. To drain air and fluid from the pleural space
- B. To prevent infection in the thoracic cavity
- C. To assist with lung expansion
- D. To monitor intrathoracic pressure
Correct answer: A
Rationale: The correct answer is A: To drain air and fluid from the pleural space. A chest tube is primarily used to remove accumulated air or fluid in the pleural space, preventing lung collapse or compromise of lung function. This intervention aims to re-expand the lung and enhance respiratory function. Choice B is incorrect because preventing infection is not the primary purpose of a chest tube. Choice C is incorrect as lung expansion is a result of draining the pleural space, not the primary goal. Choice D is incorrect as monitoring intrathoracic pressure is not the main objective of a chest tube insertion.
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