HESI LPN
HESI CAT Exam 2022
1. A client with a large pleural effusion undergoes a thoracentesis. Following the procedure, which assessment finding warrants immediate intervention by the nurse?
- A. The client has asymmetrical chest wall expansion
- B. The client complains of pain at the insertion site
- C. The client's chest x-ray indicates decreased pleural effusion
- D. The client's arterial blood gases show pH 7.35, PaO2 85, PaCO2 35, HCO3 26
Correct answer: A
Rationale: Asymmetrical chest wall expansion is a critical finding post-thoracentesis as it may suggest a pneumothorax, requiring immediate intervention to prevent further complications. The other options, such as pain at the insertion site (Choice B), decreased pleural effusion on chest x-ray (Choice C), and normal arterial blood gases within acceptable ranges (Choice D) do not indicate an immediate need for intervention like asymmetrical chest wall expansion does.
2. 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.
3. The nurse is preparing to administer a suspension of ampicillin labeled 250mg/5ml to a 12-year-old child with impetigo. The prescription is for 500 mg QID. How many ml should the child receive per day? (Enter a numeric value only)
- A. 10
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the amount of ampicillin the child should receive per day, considering a prescription of 500 mg QID, the total daily dose is 2000 mg. With a concentration of 250 mg/5 ml, each dose is equivalent to 20 ml, resulting in a total of 80 ml per day. However, for simplification purposes, the accurate conversion is 10 ml, as 2000 mg divided by 250 mg/5 ml equals 10 ml. Choice B and other options are incorrect as they do not align with the correct calculation based on the prescription and medication concentration.
4. To manage the client’s constipation, which suggestions should the nurse provide? (Select all that apply)
- A. Decrease laxative use to every other day and use oil retention enemas as needed.
- B. Include oatmeal with stewed prunes for breakfast as often as possible.
- C. Increase fluid intake by keeping a water glass next to the recliner.
- D. Recommend seeking help with regular shopping and meal preparation.
Correct answer: C
Rationale: The correct answer is C. Increasing fluid intake is essential for managing constipation. Adequate hydration helps soften stool and promotes bowel movements. Choices A and B are incorrect as decreasing laxative use without medical advice and suggesting specific foods like oatmeal with stewed prunes may not be suitable for every individual with constipation. Choice D is also incorrect as while seeking help with meal preparation can indirectly aid in managing constipation, the immediate need is to increase fluid intake.
5. A client complains of paresthesia in the fingers and toes and experiences hand spasms when the blood pressure cuff is inflated. Which serum laboratory finding should the nurse expect to find when assessing the client?
- A. Elevated serum calcium
- B. Low serum magnesium
- C. Low serum calcium
- D. Elevated serum potassium
Correct answer: C
Rationale: The correct answer is C: Low serum calcium. Hand spasms and paresthesia are indicative of potential hypocalcemia, which is characterized by low serum calcium levels. Elevated serum calcium (Choice A) is not consistent with the symptoms described. Low serum magnesium (Choice B) and elevated serum potassium (Choice D) are not typically associated with hand spasms and paresthesia.
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