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. Which intervention is most effective in preventing the spread of infection in a healthcare setting?
- A. Wearing gloves
- B. Using hand sanitizer
- C. Practicing hand hygiene
- D. Disinfecting surfaces
Correct answer: C
Rationale: Practicing hand hygiene is the most effective measure to prevent the spread of infection in healthcare settings. While wearing gloves, using hand sanitizer, and disinfecting surfaces are important infection control measures, they are not as effective as proper hand hygiene. Hand hygiene, including handwashing with soap and water or using alcohol-based hand sanitizers, is crucial in preventing the transmission of pathogens from one person to another, making it the best choice among the options provided. Wearing gloves primarily protects the wearer and is not a substitute for hand hygiene. Using hand sanitizer is helpful but may not be as effective as proper handwashing. Disinfecting surfaces is important but does not address the direct transmission of pathogens through hand contact, which hand hygiene effectively prevents.
3. The client is 4 hours post-operative from a cesarean section and complains of gas pain and bloating. What non-pharmacological intervention can the nurse provide?
- A. Encourage the client to ambulate
- B. Apply a heating pad
- C. Provide a carbonated beverage
- D. Teach relaxation techniques
Correct answer: A
Rationale: The correct answer is to encourage the client to ambulate. Early ambulation helps alleviate gas pain and bloating by promoting gastrointestinal motility and reducing the accumulation of gas in the abdomen. Applying a heating pad may provide comfort for some types of pain but is not specifically effective for gas pain. Providing a carbonated beverage can actually worsen gas pain due to the introduction of more gas into the digestive system. Teaching relaxation techniques may be beneficial for overall comfort but may not directly address the gas pain and bloating experienced post-cesarean section.
4. When teaching a group of school-aged children how to reduce the risk for Lyme disease, which instruction should the camp nurse include?
- A. Wash hands frequently.
- B. Avoid drinking lake water.
- C. Do not share personal products.
- D. Wear long sleeves and pants.
Correct answer: D
Rationale: The correct answer is 'Wear long sleeves and pants.' This instruction is crucial in reducing the risk of Lyme disease because it helps minimize exposure to ticks that carry the disease. Ticks are commonly found in grassy and wooded areas, so covering up with long sleeves and pants can act as a physical barrier and prevent ticks from attaching to the skin. Choices A, B, and C are not directly related to preventing Lyme disease. Washing hands frequently is important for general hygiene but not specifically for preventing tick bites. Avoiding drinking lake water is more about preventing waterborne illnesses rather than Lyme disease. Not sharing personal products is important for preventing the spread of infections but is not directly related to Lyme disease prevention.
5. 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.
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