HESI LPN
CAT Exam Practice
1. A client prescribed warfarin is being taught about dietary modifications by a nurse. Which statement by the client indicates understanding of the teaching?
- A. ''I need to avoid foods high in vitamin C.''
- B. ''I should eat a consistent amount of vitamin K each day.''
- C. ''I can eat as many leafy greens as I want.''
- D. ''I should not worry about any changes in my diet.''
Correct answer: B
Rationale: The correct answer is B. Consistency in vitamin K intake is crucial for clients on warfarin to maintain stable anticoagulation levels. Option A is incorrect as vitamin C does not directly interact with warfarin. Option C is incorrect because although leafy greens are high in vitamin K, excessive consumption can affect warfarin's effectiveness. Option D is incorrect as any changes in diet, particularly in vitamin K intake, can impact the efficacy of warfarin.
2. 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.
3. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
4. The nurse is preparing to administer an IM dose of vitamin B1 (Thiamine) to a male client experiencing acute alcohol withdrawal and peripheral neuritis. The client belligerently states, “What do you think you’re doing?” How should the nurse respond?
- A. “I cannot give you this medication until you calm down.”
- B. “This shot will help relieve the pain in your feet.”
- C. “Would you prefer to learn to administer your own shot?”
- D. “You will feel calmer and less jittery after this shot.”
Correct answer: B
Rationale: The correct response is to provide a relevant explanation to the client. Choice B, “This shot will help relieve the pain in your feet,” is the best answer because it directly addresses the client's concern about the purpose of the medication. By explaining the potential benefit of the injection, the nurse can alleviate the client's anxiety and increase their cooperation during the procedure. Choice A is incorrect as it dismisses the client's question and may escalate the situation. Choice C is not suitable as it deviates from addressing the client's immediate query. Choice D is incorrect because it fails to specifically address the client's concern regarding the medication's purpose.
5. A client admitted to the intensive care unit with syndrome of inappropriate antidiuretic hormone (SIADH) has developed osmotic demyelination. Which intervention should the nurse implement first?
- A. Patch one eye.
- B. Reorient often.
- C. Range of motion.
- D. Evaluate swallow
Correct answer: B
Rationale: Frequent reorientation is crucial for clients with neurological impairments from osmotic demyelination to prevent confusion and assist with orientation. It helps maintain a proper sense of time, place, and person, reducing disorientation. Patching one eye (Choice A) is not a priority intervention for osmotic demyelination and does not address the immediate need for reorientation. Range of motion exercises (Choice C) may be important for overall care, but reorientation takes precedence due to its impact on neurological functioning. Evaluating swallow (Choice D) is not the primary intervention needed for osmotic demyelination; it is essential but not the first priority.
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