HESI LPN
HESI Fundamentals Exam
1. A client with iron-deficiency anemia asks a nurse why the Z-track method is necessary for administering iron dextran. Which response should the nurse provide?
- A. It decreases the risk of injecting medication into a blood vessel.
- B. It delays medication absorption.
- C. It minimizes tissue irritation.
- D. It accelerates medication excretion.
Correct answer: C
Rationale: The Z-track method is used to minimize tissue irritation by sealing the medication in the muscle. This technique helps prevent leakage of the medication into subcutaneous tissue, reducing the risk of irritation and staining at the injection site. Option A about decreasing the risk of injecting medication into a blood vessel is not correct as the primary purpose of the Z-track method is to prevent tissue irritation. Option B stating it delays medication absorption is incorrect as the Z-track method does not affect the rate of medication absorption. Option D mentioning it accelerates medication excretion is incorrect as the Z-track method does not impact medication excretion but rather focuses on minimizing tissue irritation.
2. An elderly male client who is unresponsive following a cerebral vascular accident (CVA) is receiving bolus enteral feedings through a gastrostomy tube. What is the best client position for the administration of bolus tube feedings?
- A. Prone.
- B. Fowler's.
- C. Sims'.
- D. Supine.
Correct answer: B
Rationale: The correct answer is Fowler's position. Placing the client in Fowler's position, with the head of the bed elevated to 45-60 degrees, reduces the risk of aspiration during bolus enteral feedings by facilitating the flow of the feeding into the stomach. Prone position (choice A) is lying face down, which is not suitable for feeding. Sims' position (choice C) is a side-lying position used for rectal examinations or enemas, not for feeding. Supine position (choice D) is lying flat on the back and is not optimal for reducing the risk of aspiration during bolus tube feedings.
3. A client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?
- A. Blood glucose of 350 mg/dL
- B. Serum bicarbonate of 18 mEq/L
- C. Arterial pH of 7.20
- D. Serum potassium of 5.5 mEq/L
Correct answer: C
Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.
4. A nurse in a mental health unit is preparing to terminate the nurse-client relationship with a client who no longer requires care. Which concept should the nurse and client discuss in the termination phase of the relationship?
- A. Loss
- B. Autonomy
- C. Confidentiality
- D. Accountability
Correct answer: A
Rationale: In the termination phase of a nurse-client relationship, discussing 'loss' is crucial to help the client understand and process the end of the therapeutic relationship and any emotional impact. This discussion can aid in closure and transitioning out of the professional relationship. 'Autonomy' refers to the client's right to make decisions about their care, which is important throughout the relationship but not specifically in the termination phase. 'Confidentiality' is essential for maintaining trust but is not the primary focus during termination. 'Accountability' involves being answerable for one's actions, which is important in nursing practice but not a central topic in the termination phase of the relationship.
5. To ensure the safety of a client receiving a continuous intravenous normal saline infusion, how often should the LPN change the administration set?
- A. Every 4 to 8 hours
- B. Every 12 to 24 hours
- C. Every 24 to 48 hours
- D. Every 72 to 96 hours
Correct answer: D
Rationale: The correct answer is to change the administration set every 72 to 96 hours. This practice helps reduce the risk of infection by preventing the build-up of bacteria in the tubing. Changing the set too frequently (choices A, B, and C) may increase the chances of contamination and infection without providing additional benefits. Therefore, the LPN should follow the guideline of changing the administration set every 72 to 96 hours to maintain the client's safety during the continuous intravenous normal saline infusion.
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