HESI LPN
HESI CAT Exam
1. After a motor vehicle collision, a client is admitted to the medical unit with acute adrenal insufficiency (Addisonian crisis). Which prescription should the nurse implement?
- A. Determine serum glucose levels
- B. Withhold potassium additives to IV fluids
- C. Give IV corticosteroid replacement
- D. Prepare to initiate IV vasopressors
Correct answer: C
Rationale: In a client with acute adrenal insufficiency (Addisonian crisis) following a motor vehicle collision, the priority intervention is to administer IV corticosteroid replacement. This is crucial to manage the crisis by replacing the deficient cortisol. Determining serum glucose levels (Choice A) may be important but is not the immediate priority in this situation. Withholding potassium additives to IV fluids (Choice B) is not indicated and may exacerbate electrolyte imbalances. Initiating IV vasopressors (Choice D) is not the primary treatment for acute adrenal insufficiency and should be reserved for managing hypotension that is unresponsive to corticosteroid therapy.
2. Identify the placement of the stapes footplate into the bony labyrinth.
- A. Fenestra vestibuli
- B. Fenestra cochleae
- C. Tympanic membrane
- D. Round window
Correct answer: A
Rationale: The correct answer is A: Fenestra vestibuli. The stapes footplate is placed into the fenestra vestibuli of the bony labyrinth. This structure is also known as the oval window and is located at the junction of the middle ear and inner ear. Choice B, Fenestra cochleae, is incorrect as this opening is also known as the round window and is located near the base of the cochlea. Choice C, Tympanic membrane, is incorrect as it is also known as the eardrum and separates the external ear from the middle ear. Choice D, Round window, is incorrect as it is the opening covered by the secondary tympanic membrane and is important for the dissipation of sound waves in the cochlea.
3. The nurse is providing care for a client with chronic obstructive pulmonary disease (COPD). Which intervention is most appropriate to include in the care plan?
- A. Instruct the client to use pursed-lip breathing
- B. Recommend a high-fat, low-carbohydrate diet
- C. Limit physical activity to prevent shortness of breath
- D. Encourage the client to drink large amounts of fluids
Correct answer: A
Rationale: The correct answer is A: Instruct the client to use pursed-lip breathing. Pursed-lip breathing helps improve ventilation and reduce shortness of breath in COPD clients. This technique involves inhaling slowly through the nose and exhaling through pursed lips. Choice B is incorrect because a high-fat, low-carbohydrate diet is not recommended for individuals with COPD as it can lead to weight gain and worsen respiratory function. Choice C is incorrect as limiting physical activity can lead to deconditioning and worsen COPD symptoms. Regular, moderate exercise is beneficial for individuals with COPD. Choice D is incorrect as excessive fluid intake can strain the heart in COPD clients. It is important to maintain adequate but not excessive fluid intake to prevent dehydration and maintain optimal lung function.
4. A client is admitted with acute low back pain. What action should the nurse implement to promote comfort?
- A. Ambulate with a walker for upper body support
- B. Perform abdominal curls to stretch the back muscles
- C. Position in semi-Fowler's with the knees flexed
- D. Encourage straight leg raises while lying supine
Correct answer: C
Rationale: Positioning the client in semi-Fowler's with the knees flexed is the most appropriate action to promote comfort in a client with acute low back pain. This position helps alleviate low back pain by reducing the pressure on the spine and supporting its natural curvature. Ambulating with a walker could strain the back, performing abdominal curls may exacerbate the pain, and straight leg raises while lying supine could cause further discomfort. Therefore, only positioning the client in semi-Fowler's with the knees flexed is the correct choice for promoting comfort in this scenario.
5. Before leaving the room of a confused client, the nurse notes that a half bow knot was used to attach the client's wrist restraints to the movable portion of the client's bed frame. What action should the nurse take before leaving the room?
- A. Ensure that the knot can be quickly released.
- B. Tie the knot with a double turn or square knot.
- C. Move the ties so the restraints are secured to the side rails.
- D. Ensure that the restraints are snug against the client's wrist.
Correct answer: A
Rationale: The correct action for the nurse to take before leaving the room is to ensure that the knot can be quickly released. Using a half bow knot to attach the client's wrist restraints allows for quick release in case of an emergency. This is crucial for ensuring the safety of the client and complying with restraint policies. Tying the knot with a double turn or square knot (Choice B) would make it difficult to release quickly when needed. Moving the ties so the restraints are secured to the side rails (Choice C) does not address the immediate need for a quick release. Ensuring that the restraints are snug against the client's wrist (Choice D) may not be appropriate if the restraints need to be quickly removed for the client's safety.
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