HESI LPN
CAT Exam Practice Test
1. The nurse is teaching a class on child care to new parents. Which instruction should be included about the prevention of rotavirus infection in infants who are starting to eat foods?
- A. Keep house pets away from the food preparation area
- B. Avoid feeding infants fresh fruits
- C. Use only lactose-free formulas
- D. Wash hands before any food preparation
Correct answer: D
Rationale: The correct answer is D: Wash hands before any food preparation. Rotavirus is a highly contagious virus that can be prevented by maintaining proper hygiene. Washing hands before handling food can help prevent the spread of infections, including rotavirus. Choices A, B, and C are incorrect because while they are good practices for general hygiene and infant care, they are not specifically targeted at preventing rotavirus infection.
2. A male client is returned to the surgical unit following a left nephrectomy and is medicated with morphine. His dressing has a small amount of bloody drainage, and a Jackson-Pratt bulb surgical drainage device is in place. Which intervention is most important for the nurse to include in this client's plan of care?
- A. Monitor urine output hourly
- B. Assess for back muscle aches
- C. Record drainage from the drain
- D. Obtain body weight daily
Correct answer: C
Rationale: The most important intervention for the nurse to include in the client's plan of care following a left nephrectomy with a Jackson-Pratt bulb in place is to record drainage from the drain. Monitoring the drainage is crucial as it helps assess for potential complications such as hemorrhage, infection, or other issues related to the surgical site. Assessing urine output is important post-nephrectomy but not as critical as directly monitoring the drainage. Assessing for back muscle aches may be relevant for pain management but not as crucial as monitoring the drainage. Obtaining body weight daily is not directly related to assessing the surgical drain output and is less critical in this scenario.
3. A client is admitted to the hospital with a serum sodium level of 128 mEq/L, distended neck veins, and lung crackles. What intervention should the nurse implement?
- A. Increase the intake of salty foods
- B. Administer NaCl supplements
- C. Restrict oral fluid intake
- D. Hold the client's loop diuretic
Correct answer: C
Rationale: In the scenario described, the client presents with signs of fluid overload and hyponatremia. Restricting oral fluid intake is the appropriate intervention to manage fluid overload and correct hyponatremia. Increasing the intake of salty foods (Choice A) and administering NaCl supplements (Choice B) would exacerbate the sodium imbalance. Holding the client's loop diuretic (Choice D) is not directly related to addressing the fluid overload and hyponatremia.
4. A client who is scheduled to have surgery in two hours tells the nurse, 'My doctor was here and used a lot of big words about the surgery, then asked me to sign a paper.' What action should the nurse take?
- A. Reassure the client that pre-surgery anxiety is a normal experience
- B. Explain the surgery in clear terms that the client can understand
- C. Call the surgeon back to clarify the information with the client
- D. Redirect the client’s thoughts by teaching relaxation techniques
Correct answer: B
Rationale: The correct action for the nurse to take in this situation is to explain the surgery to the client in clear terms that they can understand. This will help alleviate the client's anxiety and ensure they are well-informed about the procedure they are about to undergo. Choice A is incorrect because while reassurance is important, it does not address the client's specific concern about understanding the surgery. Choice C is not the initial step; the nurse should first attempt to clarify the information themselves. Choice D is not the priority when the client is seeking clarification about the surgery.
5. 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.
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