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. After receiving report, which client should the nurse assess last?
- A. An older client with dark red drainage on a postoperative dressing, but no drainage in the Hemovac
- B. An adult client with no postoperative drainage in the Jackson-Pratt drain with the bulb compressed
- C. An older client with a distended abdomen and no drainage from the nasogastric tube
- D. An adult client with rectal tube draining clear pale red liquid drainage
Correct answer: D
Rationale: The correct answer is D because the client with rectal tube drainage of clear pale red liquid is likely to be the least urgent since this is a normal post-operative finding. Clear pale red liquid drainage from a rectal tube is typically not a cause for immediate concern. Choices A, B, and C present clients with concerning signs that may require more immediate assessment and intervention. A client with dark red drainage on a postoperative dressing may indicate active bleeding, a client with a compressed Jackson-Pratt drain bulb may have inadequate drainage resulting in complications, and a client with a distended abdomen and no drainage from the nasogastric tube may be experiencing gastrointestinal issues that need prompt evaluation.
3. A female client presents to the emergency department in the early evening complaining of abdominal cramping, watery diarrhea, and vomiting. She tells the nurse that she was at a picnic and ate barbecue that afternoon. What question is most important for the triage nurse to ask this client?
- A. Have you recently traveled outside the United States?
- B. How high was your temperature when you returned home?
- C. Have you taken any medication to treat these symptoms?
- D. Is anyone else sick who was also at the picnic?
Correct answer: D
Rationale: The most important question for the triage nurse to ask the client in this scenario is whether anyone else who attended the picnic is also sick. This is crucial to identify a potential outbreak or common source of infection. Asking about recent travel may be important for infectious diseases but is not as relevant as identifying a common source among individuals who shared the same food. Inquiring about the client's temperature is important but does not provide immediate insight into the cause of symptoms. Asking about medication taken is relevant but not as critical as determining if others are affected, which could indicate a foodborne illness.
4. A client receives a prescription for acetylcysteine (Mucomyst) 1.4 grams per nasogastric tube q4 hours. Acetylcysteine is available as a 10% solution (10 grams/100ml). How many ml of the 10% solution should the nurse administer per dose?
- A. 7
- B. 10
- C. 14
- D. 1.4 grams of acetylcysteine is equivalent to 14 ml of a 10% solution.
Correct answer: D
Rationale: To determine the amount of the 10% acetylcysteine solution to administer, convert the 1.4 grams to milligrams (1.4 grams = 1400 mg). Then, as the 10% solution contains 10 grams (10,000 mg) per 100 ml, it means there are 1000 mg of acetylcysteine in every 10 ml of the solution (10,000 mg / 100 ml = 100 mg/ml). Therefore, to administer 1400 mg (1.4 grams) of acetylcysteine, the nurse should give 14 ml of the 10% solution. Choices A, B, and C are incorrect as they do not accurately convert the amount of acetylcysteine to the corresponding volume of the 10% solution.
5. A client who sustained a pellet gun injury with a resulting comminuted skull fracture is admitted overnight for observation. Which assessment finding obtained two hours after admission necessitates immediate intervention?
- A. The client complains of a throbbing headache rated 10 (on a scale of 1 to 10)
- B. The client repeatedly falls asleep while talking with the nurse
- C. The entry site has a slow trickle of bright red blood
- D. The entry site appears reddened and edematous
Correct answer: B
Rationale: In a client with a pellet gun injury and a comminuted skull fracture, repeatedly falling asleep while talking with the nurse is a concerning sign. It can indicate increased intracranial pressure or a deteriorating condition, requiring immediate intervention. The other options, such as a throbbing headache (choice A), slow trickle of bright red blood at the entry site (choice C), or reddened and edematous entry site (choice D), while important to monitor, do not directly indicate a need for immediate intervention as much as the client falling asleep repeatedly while talking does.
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