HESI LPN
HESI PN Exit Exam
1. During a clinic visit for a sore throat, a client's basal metabolic panel reveals a serum potassium of 3.0 mEq/L. Which intervention should the PN recommend to the client based on this finding?
- A. Increase intake of dried peaches and apricots
- B. Reduce intake of red meats
- C. Encourage use of a soft toothbrush
- D. Force fluid intake to 1500 mL daily
Correct answer: A
Rationale: The correct answer is to recommend increasing the intake of dried peaches and apricots. A serum potassium level of 3.0 mEq/L is considered low. Increasing the intake of potassium-rich foods can help raise the serum potassium level, preventing complications such as muscle weakness and cardiac arrhythmias. Choice B, reducing intake of red meats, is incorrect because red meats are not specifically related to potassium levels. Choice C, encouraging the use of a soft toothbrush, is unrelated to addressing low potassium levels. Choice D, forcing fluid intake to 1500 mL daily, is not the appropriate intervention for low serum potassium; instead, increasing potassium-rich foods is more beneficial.
2. A client confides to the nurse that the client has been substituting herbal supplements for high blood pressure instead of the prescribed medication. How should the nurse respond first?
- A. Ask the client's reason for choosing to take herbs instead of prescribed medication
- B. Reinforce that the healthcare provider prescribed the medication for a reason
- C. Have the client use their own words to describe complications of high blood pressure
- D. Point out the risks of not taking the prescribed medication rather than herbal supplements
Correct answer: A
Rationale: The correct answer is to ask the client's reason for choosing to take herbs instead of prescribed medication. Understanding the client's rationale for using herbal supplements allows the nurse to explore any misconceptions and provide education on the importance of the prescribed medication. Choice B is incorrect because simply reinforcing the prescription does not address the client's concerns or reasons for using herbal supplements. Choice C does not directly address the immediate concern of the client substituting medication with herbal supplements. Choice D focuses on the risks of not taking the prescribed medication rather than herbal supplements, which is not the most appropriate initial response.
3. Which type of cell is responsible for producing antibodies in the immune system?
- A. B lymphocytes
- B. T lymphocytes
- C. Macrophages
- D. Neutrophils
Correct answer: A
Rationale: The correct answer is A: B lymphocytes. B lymphocytes (B cells) are a crucial part of the adaptive immune system. They produce antibodies, which are proteins that specifically target and neutralize pathogens such as bacteria and viruses. T lymphocytes (choice B) are involved in cell-mediated immunity rather than antibody production. Macrophages (choice C) are phagocytic cells that engulf and digest pathogens but do not produce antibodies. Neutrophils (choice D) are a type of white blood cell that primarily function in the innate immune response by phagocytosing pathogens.
4. What is the primary function of hemoglobin in red blood cells?
- A. Oxygen transport
- B. Immunity
- C. Blood clotting
- D. Carbon dioxide transport
Correct answer: A
Rationale: The correct answer is A: Oxygen transport. Hemoglobin in red blood cells binds to oxygen in the lungs and carries it to tissues throughout the body, releasing it where needed. This process is essential for cellular respiration and energy production. Choices B, C, and D are incorrect because hemoglobin's primary function is not related to immunity, blood clotting, or carbon dioxide transport. Hemoglobin's main role is to transport oxygen, ensuring adequate oxygen supply to body tissues for metabolic processes.
5. While performing an inspection of a client's fingernails, the PN observes a suspected abnormality of the nail's shape and character. Which finding should the PN document?
- A. Clubbed nails
- B. Splinter hemorrhages
- C. Longitudinal ridges
- D. Koilonychia or spoon nails
Correct answer: A
Rationale: The correct answer is A: Clubbed nails. Clubbed nails are a significant finding often associated with chronic hypoxia or lung disease. The presence of clubbed nails should be documented for further evaluation. Splinter hemorrhages (Choice B) are tiny areas of bleeding under the nails and are associated with conditions like endocarditis. Longitudinal ridges (Choice C) are common and often a normal finding in older adults. Koilonychia or spoon nails (Choice D) refer to nails that are concave or scooped out, often seen in conditions like iron deficiency anemia or hemochromatosis. These conditions are not typically associated with chronic hypoxia or lung disease, making them less likely findings in this situation.
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