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. 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 client who is newly diagnosed with type 2 diabetes mellitus (DM) receives a prescription for metformin (Glucophage) 500 mg PO twice daily. What information should the nurse include in this client’s teaching plan? (Select all that apply.)
- A. Take an additional dose for signs of hyperglycemia
- B. Recognize signs and symptoms of hypoglycemia.
- C. Report persistent polyuria to the healthcare provider.
- D. Use sliding scale insulin for finger stick glucose elevation.
Correct answer: D
Rationale: The correct answer is D. Metformin does not require additional doses for hyperglycemia, and sliding scale insulin is not typically used with metformin. It is important for the client to recognize signs and symptoms of hypoglycemia, report persistent polyuria to the healthcare provider, and take the medication with meals. Teaching the client to use sliding scale insulin for finger stick glucose elevation is not appropriate in this case because metformin is the prescribed medication, and its mechanism of action differs from insulin therapy. The client should be educated on the importance of taking metformin with meals to reduce gastrointestinal side effects and to report any persistent polyuria, which could indicate poor blood sugar control.
4. A client with multiple sclerosis is experiencing scotomas (blind spots), which are limiting peripheral vision. What intervention should the nurse include in this client's plan of care?
- A. Encourage the use of corrective lenses during the day
- B. Practice visual exercises that focus on a still object
- C. Alternate an eye patch from eye every 2 hours
- D. Teach techniques for scanning the environment
Correct answer: D
Rationale: The correct intervention for a client with multiple sclerosis experiencing scotomas and limited peripheral vision is to teach techniques for scanning the environment. This intervention helps the client compensate for vision loss by learning how to scan and explore their surroundings effectively. Encouraging the use of corrective lenses may not address the issue of scotomas, and visual exercises focusing on a still object may not enhance peripheral vision. Alternating an eye patch every 2 hours is not typically indicated for scotomas in multiple sclerosis, making it an incorrect choice.
5. The healthcare provider is evaluating a client for potential dehydration. Which assessment finding is most indicative of fluid volume deficit?
- A. Moist mucous membranes
- B. Increased urine output
- C. Decreased skin turgor
- D. Elevated blood pressure
Correct answer: C
Rationale: Corrected Rationale: Decreased skin turgor is a classic sign of dehydration. When someone is dehydrated, the skin loses its elasticity and becomes less turgid. This change is easily assessed by gently pinching and pulling up the skin on the back of the hand or forearm. If the skin remains elevated or tents rather than quickly returning to its normal position, it indicates dehydration. Moist mucous membranes (Choice A) are actually a sign of adequate hydration. Increased urine output (Choice B) can be a sign of dehydration, but decreased skin turgor is a more specific indicator. Elevated blood pressure (Choice D) is not typically associated with fluid volume deficit and may indicate other health issues.
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