HESI LPN
Medical Surgical HESI 2023
1. The nurse is caring for a client with a nasogastric tube. Which action should the nurse take to ensure proper functioning of the tube?
- A. Flush the tube with 50 mL of normal saline every 8 hours
- B. Clamp the tube when not in use
- C. Position the client in a supine position
- D. Verify tube placement by checking pH of gastric contents
Correct answer: D
Rationale: Verifying tube placement by checking the pH of gastric contents is crucial to ensure the nasogastric tube is correctly positioned in the stomach. This action helps prevent complications such as aspiration. Flushing the tube with normal saline every 8 hours is not necessary for ensuring proper functioning of the tube. Clamping the tube when not in use may lead to the build-up of gastric secretions and blockages. Positioning the client in a supine position is not directly related to ensuring the proper functioning of the nasogastric tube.
2. Which statement correctly explains the etiology of Down syndrome?
- A. There is an extra chromosome on the 21st pair.
- B. There is a missing chromosome on the 21st pair.
- C. There are two pairs of the 21st chromosome.
- D. The 21st chromosome pair is missing.
Correct answer: A
Rationale: The correct answer is A: 'There is an extra chromosome on the 21st pair.' Down syndrome is caused by the presence of an extra copy of chromosome 21, known as trisomy 21. This additional genetic material leads to the characteristics associated with Down syndrome. Choices B, C, and D are incorrect because Down syndrome is not due to a missing chromosome or having two pairs of the 21st chromosome; it results from the presence of an extra chromosome on the 21st pair.
3. When performing postural drainage on a client with chronic obstructive pulmonary disease (COPD), which approach should the nurse use?
- A. Obtain arterial blood gases (ABGs) before the procedure.
- B. Explain that the client may be positioned in five different ways.
- C. Assist the patient into a position that will allow gravity to move secretions.
- D. Encourage the client to practice deep breathing throughout the procedure.
Correct answer: C
Rationale: The correct approach when performing postural drainage on a client with COPD is to assist the patient into a position that allows gravity to help move secretions. This position helps drain secretions from specific segments of the lungs. Obtaining arterial blood gases (Choice A) is not directly related to postural drainage. While the client may be placed in multiple positions during postural drainage, the key is to position them to facilitate the movement of secretions, not just any five positions as mentioned in Choice B. Encouraging deep breathing (Choice D) is a good nursing intervention for overall respiratory health but is not specifically related to the technique of postural drainage.
4. When interacting with the parents of a SIDS infant, the nurse should attempt to assist the parents with:
- A. Encouraging the parents to have another baby.
- B. Encouraging the parents to remain stoic.
- C. Allaying feelings of guilt and blame.
- D. Learning how the event could have been prevented.
Correct answer: C
Rationale: The correct answer is C: Allaying feelings of guilt and blame. When parents experience the loss of a SIDS infant, they often struggle with intense feelings of guilt and self-blame. The nurse's role is to provide emotional support and help alleviate these feelings. Choices A and B are incorrect as encouraging the parents to have another baby or to remain stoic is not appropriate or helpful in this situation. Choice D is also incorrect because focusing on how the event could have been prevented may exacerbate feelings of guilt and is not the immediate priority in supporting grieving parents.
5. What is the main characteristic of cystic fibrosis?
- A. Multiple upper respiratory infections
- B. An underproduction of exocrine glands
- C. Excessive, thick mucus
- D. An overproduction of thin mucus
Correct answer: C
Rationale: The main characteristic of cystic fibrosis is the production of excessive, thick mucus. This thick mucus leads to blockages in the airways, digestive system, and other organs. Choice A is incorrect because while individuals with cystic fibrosis are more prone to respiratory infections, the main characteristic is the mucus production. Choice B is incorrect as cystic fibrosis is characterized by the overproduction, not underproduction, of exocrine glands. Choice D is also incorrect as the mucus produced in cystic fibrosis is thick, not thin.
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