HESI LPN
CAT Exam Practice Test
1. 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.
2. An older client is having photocoagulation for macular degeneration. What intervention should the nurse implement during post-procedure care in the outpatient surgical unit?
- A. Apply bilateral eye patches while sleeping
- B. Use a whiteboard to communicate with the client
- C. Arrange food on the plate in a clockwise order
- D. Verbally identify oneself when entering the room
Correct answer: A
Rationale: The correct intervention is to apply bilateral eye patches while sleeping. This measure helps protect the eyes and support healing following photocoagulation for macular degeneration. Choice B is incorrect as using a whiteboard is not directly related to post-procedure care for this intervention. Choice C is incorrect as arranging food on the plate in a clockwise order is not relevant to the post-procedure care of photocoagulation. Choice D is incorrect as verbally identifying oneself when entering the room is important for communication but not specific to the post-procedure care in this scenario.
3. A nurse who works in the nursery is attending the vaginal delivery of a term infant. What action should the nurse complete before leaving the delivery room?
- A. Obtain the infant's vital signs.
- B. Observe the infant latching onto the breast.
- C. Administer a vitamin K injection.
- D. Place the ID bands on the infant and mother.
Correct answer: D
Rationale: Placing ID bands on the infant and mother is crucial to ensure correct identification and prevent mix-ups. This step is essential for maintaining proper identification of the newborn and the mother, facilitating safe care delivery. Before leaving the delivery room, ensuring proper identification is a priority to prevent any errors. Obtaining the infant's vital signs may be important but does not take precedence over ensuring correct identification. Observing the infant latching onto the breast is crucial for breastfeeding initiation but can be done after proper identification. Administering a vitamin K injection is also important but should not delay the immediate identification process.
4. When washing soiled hands, what should the nurse do after wetting the hands and applying soap?
- A. Rub hands palm to palm
- B. Interlace the fingers
- C. Dry hands with a paper towel
- D. Turn off the water faucet
Correct answer: A
Rationale: After wetting the hands and applying soap, the nurse should rub hands palm to palm. Rubbing hands palm to palm helps create friction and effectively clean the hands by spreading the soap and reaching all areas. Interlacing the fingers, drying hands with a paper towel, and turning off the water faucet should come after rubbing hands palm to palm in the handwashing process. Interlacing the fingers can be done to ensure the backs of the hands are cleaned, drying hands with a paper towel is the final step to ensure hands are dry, and turning off the water faucet helps save water.
5. The nurse is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant’s clinical picture?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory alkalosis
- D. Respiratory acidosis
Correct answer: B
Rationale: Pyloric stenosis often leads to metabolic alkalosis due to the loss of gastric acid from vomiting. Metabolic acidosis would not be expected in pyloric stenosis as there is no excessive acid accumulation. Respiratory alkalosis and respiratory acidosis are not typically associated with pyloric stenosis, making them incorrect choices.
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