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. The healthcare provider prescribes a fluid challenge of 0.9% sodium chloride 1,000 ml to be infused over 4 hours. The IV administration set delivers 10gtt/ml. How many gtt/minute should the nurse regulate the infusion? (Enter a numeric value only. If rounding is required, round to the nearest whole number.)
- A. 42
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the rate: (1000 ml / 4 hours) = 250 ml/hour; (250 ml/hour) / (60 minutes/hour) = 4.17 ml/minute; (4.17 ml/minute) * (10 gtt/ml) = 41.7 gtt/minute, rounded to 42 gtt/minute. Therefore, the nurse should regulate the infusion at 42 gtt/minute to deliver the prescribed fluid challenge accurately. The other choices are incorrect as they do not reflect the correct calculation based on the given information.
3. The nurse is obtaining the medical histories of new clients at a community-based primary care clinic. Which individual has the highest risk for experiencing elder abuse?
- A. A 69-year-old widowed female who lives alone and volunteers at a school
- B. A 95-year-old ambulatory male who resides in a nursing home in a small town
- C. A 78-year-old female on a fixed income who lives with her relatives
- D. An 81-year-old male with diabetes who lives with his wife of 52 years
Correct answer: C
Rationale: Elder abuse risk is higher in individuals who live with relatives and are on a fixed income as these factors can contribute to vulnerability. Living with relatives may expose the individual to potential abusive situations within the family dynamics. Additionally, being on a fixed income may limit financial independence and increase dependency on others, potentially leading to financial abuse. The other options, such as living alone and volunteering, residing in a nursing home, or living with a long-term spouse, do not inherently pose the same level of risk factors for elder abuse as living with relatives on a fixed income.
4. The nurse assesses a 5-year-old child who has been experiencing frequent headaches and vomiting. The nurse notices that the child is lethargic and has a positive Brudzinski sign. Which action should the nurse implement first?
- A. Perform a complete neurological examination
- B. Measure the child’s head circumference
- C. Check the child’s blood glucose level
- D. Notify the healthcare provider immediately
Correct answer: D
Rationale: The correct action for the nurse to implement first is to notify the healthcare provider immediately. The presence of lethargy and a positive Brudzinski sign in a child experiencing frequent headaches and vomiting may indicate a serious condition like meningitis. Prompt notification of the healthcare provider is crucial for timely evaluation and initiation of appropriate treatment. Choice A is incorrect because while a neurological examination may be necessary, it is not the priority when a potentially serious condition like meningitis is suspected. Choice B is incorrect as measuring the child's head circumference is not the most immediate action to take in this situation. Choice C is also incorrect as checking the child's blood glucose level, although important in some cases, is not the priority when a child presents with symptoms suggestive of meningitis.
5. A client is admitted to the labor and delivery unit in early labor, and the nurse assesses the status of her contractions. The frequency of contractions is most accurately evaluated by counting the minutes and seconds in which manner?
- A. From the peak of one contraction to the peak of the next contraction
- B. From the beginning of one contraction to the end of that contraction
- C. From the beginning of one contraction to the beginning of the next contraction
- D. From the end of one contraction to the beginning of the next contraction
Correct answer: C
Rationale: The frequency of contractions is measured from the beginning of one contraction to the beginning of the next contraction. This timing is crucial in determining the progress of labor. Choice A, measuring from peak to peak, is incorrect as it assesses the duration between the highest points of contractions, which is not how frequency is calculated. Choice B, measuring from the beginning to the end of one contraction, is incorrect as it does not consider the start of the next contraction. Choice D, measuring from the end of one contraction to the beginning of the next contraction, is incorrect as it misses the initial onset of the following contraction.
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