HESI LPN
HESI PN Exit Exam
1. Which action should the PN implement when using standard precautions to provide client care?
- A. Apply sterile gloves to obtain a finger stick blood sample
- B. Wear clean exam gloves to perform perineal catheter care
- C. Replace the needle cap after giving an intramuscular injection
- D. Wear a paper gown to prevent transmission of droplet pathogens
Correct answer: B
Rationale: The correct answer is B. When using standard precautions, healthcare providers should wear clean exam gloves to perform perineal catheter care. This approach helps prevent the transmission of pathogens and ensures the safety of both the client and the healthcare provider. Choice A is incorrect because applying sterile gloves for a finger stick blood sample is unnecessary when non-sterile gloves would suffice. Choice C is incorrect because replacing the needle cap after giving an intramuscular injection is not directly related to standard precautions. Choice D is incorrect because wearing a paper gown is not a standard precaution for preventing the transmission of droplet pathogens.
2. While providing oral care for a client who is unconscious, the nurse positions the client laterally and uses a basin to collect secretions. Which intervention is best for the nurse to implement?
- A. Swab the oral cavity with a washcloth
- B. Use oral swabs with normal saline
- C. Provide a Yankauer tip for oral suction
- D. Support the head with a small pillow
Correct answer: B
Rationale: Using oral swabs with normal saline is the best intervention in this scenario as it effectively cleans the oral cavity without causing irritation or dryness, which is crucial for an unconscious client. Swabbing the oral cavity with a washcloth may not provide thorough cleaning, and it can potentially cause irritation. Providing a Yankauer tip for oral suction is not necessary unless there are excessive secretions that need to be suctioned. Supporting the head with a small pillow, although important for comfort, is not directly related to oral care in an unconscious client.
3. What is the function of the enzyme lactase in the digestive system?
- A. Breaks down lactose into glucose and galactose
- B. Breaks down proteins into amino acids
- C. Converts starch into maltose
- D. Breaks down fats into fatty acids
Correct answer: A
Rationale: The correct answer is A: 'Breaks down lactose into glucose and galactose.' Lactase is an enzyme in the small intestine that specifically breaks down lactose, the sugar found in milk, into glucose and galactose for absorption. Choice B is incorrect because proteins are broken down into amino acids by protease enzymes. Choice C is incorrect because the enzyme amylase converts starch into maltose. Choice D is incorrect as lipase enzymes break down fats into fatty acids.
4. When administering IV fluids to a client with a history of congestive heart failure (CHF), what is the nurse's primary concern?
- A. Monitoring for signs of fluid overload.
- B. Ensuring the client receives enough fluids to prevent dehydration.
- C. Preventing electrolyte imbalances.
- D. Maintaining the prescribed rate of fluid administration.
Correct answer: A
Rationale: The primary concern when administering IV fluids to a client with a history of congestive heart failure (CHF) is monitoring for signs of fluid overload. Clients with CHF are particularly vulnerable to fluid overload, which can exacerbate their condition. Signs of fluid overload include edema and difficulty breathing. Therefore, the nurse must closely monitor these signs to prevent worsening of the client's condition. Choices B, C, and D are incorrect because while ensuring hydration, preventing electrolyte imbalances, and maintaining the prescribed rate of fluid administration are important, they are secondary concerns compared to the critical task of monitoring for fluid overload in a client with CHF.
5. A client is admitted to the postoperative surgical unit with two test tubes after a left lobectomy. The nurse observed that the chambers are set at the prescribed suction of 20 cm water pressure, and tidying occurs with respirations and bubbling. What action should the nurse implement?
- A. Clamp the chest tube to see if the bubbling activity stops
- B. Notify the registered nurse of the observed bubbling
- C. Maintain system integrity to promote lung reexpansion
- D. Apply an occlusive dressing to the chest
Correct answer: C
Rationale: Maintaining system integrity is essential to promote lung reexpansion in postoperative patients with chest tubes. Clamping the chest tube abruptly can lead to tension pneumothorax, a life-threatening condition. The bubbling observed is a normal sign indicating that the system is functioning correctly, as it allows the drainage of air or fluid from the pleural space. Notifying the registered nurse may be necessary if there are significant concerns or changes observed, but the immediate action should be to ensure system integrity and lung reexpansion.
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