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. The nurse is caring for a client with a nasogastric (NG) tube. Which action should the LPN/LVN take to maintain patency of the tube?
- A. Flush the tube with 30 ml of water before and after medication administration.
- B. Secure the tube to the client's gown.
- C. Check the placement of the tube by auscultation.
- D. Irrigate the tube with normal saline every shift.
Correct answer: A
Rationale: The correct action to maintain patency of a nasogastric (NG) tube is to flush the tube with water before and after medication administration. Flushing helps prevent clogging and ensures that the tube remains clear for proper functioning. Securing the tube to the client's gown (Choice B) is important for stability but does not directly address tube patency. Checking the placement of the tube by auscultation (Choice C) is crucial for verifying correct placement but does not specifically relate to maintaining tube patency. Irrigating the tube with normal saline every shift (Choice D) is not a routine practice for maintaining tube patency and can lead to electrolyte imbalances.
3. A client with a terminal illness is expected to pass away within 24 hours. The family asks the nurse about what to expect at this time. Which of the following findings should the nurse include?
- A. Regular breathing pattern
- B. Warm extremities
- C. Increased urine output
- D. Decreased muscle tone
Correct answer: D
Rationale: As death approaches, decreased muscle tone and other signs like decreased blood pressure, irregular breathing patterns, cold extremities, and decreased urine output are common. Warm extremities (choice B) would not be expected as circulation may be compromised. Increased urine output (choice C) is unlikely as organ function declines. A regular breathing pattern (choice A) is also unlikely as irregular breathing patterns are common near death.
4. The healthcare professional is caring for a client with a chest tube. What is the most important action for the healthcare professional to take to ensure the chest tube is functioning properly?
- A. Milk the chest tube to ensure patency.
- B. Clamp the chest tube when moving the client.
- C. Ensure the water seal chamber is filled to the appropriate level.
- D. Secure the chest tube to the client's bed.
Correct answer: C
Rationale: Ensuring the water seal chamber is filled to the appropriate level is crucial to maintain the effectiveness of the chest tube drainage system. This step helps prevent air from entering the pleural space, ensuring proper lung re-expansion. 'Milking' the chest tube is not recommended as it can cause damage to the chest tube and surrounding tissues. Clamping the chest tube is not advisable as it can lead to tension pneumothorax. Securing the chest tube to the bed is important for stability but does not directly impact the functioning of the chest tube.
5. While auscultating the anterior chest of a client newly admitted to a medical-surgical unit, a nurse listens to the audio clip of breath sounds through her stethoscope. What type of breath sounds does the nurse hear?
- A. Crackles
- B. Rhonchi
- C. Friction rub
- D. Normal breath sounds
Correct answer: D
Rationale: The correct answer is D: Normal breath sounds. In the scenario described, the nurse hears normal bronchovesicular breath sounds, which are moderate in intensity and resemble blowing as air moves through the larger airways during inspiration and expiration. Crackles (choice A) are typically heard in conditions like heart failure or pneumonia and are not present in this case. Rhonchi (choice B) are low-pitched, continuous sounds often associated with conditions like chronic bronchitis or bronchiectasis. Friction rub (choice C) is a grating sound usually heard in conditions like pleurisy or pericarditis, which is not the case here where normal breath sounds are heard.
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