HESI LPN
HESI Fundamentals Exam
1. A client with a new diagnosis of diabetes mellitus is being taught how to administer insulin. Which of the following instructions should the nurse include?
- A. Administer the insulin in the same body area each time.
- B. Store the insulin according to the manufacturer's instructions.
- C. Rotate injection sites within the same body area.
- D. Inject the insulin at a 45-degree angle.
Correct answer: C
Rationale: The correct instruction the nurse should include is to rotate injection sites within the same body area. This practice helps prevent lipodystrophy, a condition characterized by the thickening or thinning of subcutaneous fat at the injection sites, which can affect insulin absorption. Choice A is incorrect because administering insulin in the same area each time can lead to lipodystrophy. Choice B is incorrect as insulin should be stored according to the manufacturer's instructions, which may include refrigeration. Choice D is incorrect because the angle of insulin injection (usually 90 degrees) is determined by the length of the needle and the amount of subcutaneous fat, not a fixed 45-degree angle.
2. A client with type 2 diabetes mellitus is receiving metformin (Glucophage). Which laboratory test should the LPN/LVN monitor while the client is taking this medication?
- A. Complete blood count (CBC)
- B. Liver function tests
- C. Serum electrolytes
- D. Renal function tests
Correct answer: B
Rationale: The correct answer is B: Liver function tests. While a client is taking metformin, monitoring liver function tests is crucial to assess for potential hepatic side effects. Metformin is primarily eliminated by the liver, and monitoring liver function tests helps in early detection of any liver-related complications. Choices A, C, and D are incorrect. A complete blood count (CBC) is not specifically required for monitoring metformin therapy. Serum electrolytes are not directly impacted by metformin, making it less relevant for monitoring this medication. Renal function tests are important for some other diabetes medications, but in the case of metformin, liver function tests take precedence due to its hepatic metabolism.
3. The healthcare professional is preparing to administer potassium chloride intravenously to a client with hypokalemia. Which action is most important?
- A. Monitor the client's respiratory rate
- B. Check the client's urine output
- C. Administer the potassium chloride as a rapid IV push
- D. Dilute the potassium chloride in an appropriate IV solution
Correct answer: D
Rationale: The correct answer is to dilute the potassium chloride in an appropriate IV solution. Potassium chloride should never be administered as a rapid IV push as it can lead to severe complications, including cardiac arrhythmias. Diluting the medication and administering it slowly helps reduce the risk of adverse effects. Monitoring the client's respiratory rate (Choice A) and checking urine output (Choice B) are important aspects of patient assessment but not the most crucial when administering potassium chloride. Administering potassium chloride as a rapid IV push (Choice C) is dangerous and can result in serious harm to the client.
4. The healthcare provider is monitoring a client in active labor. Which pattern on the fetal heart monitor requires immediate intervention?
- A. Early decelerations
- B. Late decelerations
- C. Accelerations
- D. Moderate variability
Correct answer: B
Rationale: Late decelerations are concerning as they indicate uteroplacental insufficiency, potentially resulting in fetal hypoxia. Immediate intervention is necessary to address the underlying cause and ensure fetal well-being. Early decelerations are typically benign and associated with head compression during contractions. Accelerations are reassuring and indicate fetal well-being. Moderate variability is a normal finding and indicates a healthy autonomic nervous system response. Therefore, late decelerations (Choice B) require immediate attention, while the other patterns are generally considered normal or benign during labor.
5. The nurse is planning a meal plan that would provide the most iron for a child with anemia. Which dinner menu would be best?
- A. Fish sticks, french fries, banana, cookies, milk
- B. Ground beef patty, lima beans, wheat roll, raisins, milk
- C. Chicken nuggets, macaroni, peas, cantaloupe, milk
- D. Peanut butter and jelly sandwich, apple slices, milk
Correct answer: B
Rationale: The correct answer is B. Ground beef, lima beans, and raisins are rich sources of iron, making this meal plan the most suitable for a child with anemia. Ground beef is a high-iron meat, while lima beans and raisins are also excellent sources of iron. Fish sticks, french fries, banana, and cookies in option A lack sufficient iron content compared to the options in B. Chicken nuggets, macaroni, and peas in option C are not as iron-rich as the ground beef, lima beans, and raisins in option B. Peanut butter and jelly sandwich with apple slices in option D also fall short in providing enough iron when compared to the iron-rich components of option B.
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