a client who has a new prescription for warfarin coumadin asks the nurse how the medication works what explanation should the nurse provide
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Nursing Elites

HESI RN

HESI RN CAT Exit Exam

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. The nurse is planning care for a client who is receiving phenytoin (Dilantin) for seizure control. Which intervention is most important to include in this client’s plan of care?

Correct answer: C

Rationale: The correct answer is to implement seizure precautions. Phenytoin is an antiepileptic medication used for seizure control. Seizure precautions are crucial for clients taking this medication to ensure their safety during a seizure episode. Monitoring serum calcium levels (Choice A) is not directly related to phenytoin therapy. Obtaining a baseline electrocardiogram (Choice B) is important for some medications but not the priority for a client on phenytoin. Encouraging a low-protein diet (Choice D) is not specifically indicated for clients on phenytoin and is not the most important intervention.

3. The healthcare provider prescribes a diet high in vitamin C for a client with a leg wound. Which food should the nurse encourage the client to eat?

Correct answer: D

Rationale: Tomatoes and lettuce are high in vitamin C, making them suitable choices for a diet prescribed for wound healing. Bananas and pineapple (Choice A) are not particularly high in vitamin C compared to tomatoes and lettuce. Cottage cheese and crackers (Choice B) as well as peanut butter and jelly (Choice C) do not provide significant amounts of vitamin C, which is essential for wound healing.

4. A 20-year-old female client tells the nurse that her menstrual periods occur about every 28 days, and her breasts are quite tender when her menstrual flow is heavy. She also states that she performs her breast self-examination (BSE) on the first day of every month. What action should the nurse implement in response to the client's statements?

Correct answer: C

Rationale: The correct response is to encourage the client to perform breast self-examination (BSE) 2 to 3 days after her menstrual period ends. This timing is important because breasts are least tender during this phase of the menstrual cycle, allowing for a more effective examination. Choice A is incorrect because while scheduling an annual mammogram is important, the immediate concern is the timing of BSE. Choice B is incorrect as the client's BSE practice just needs a slight adjustment in timing, not an in-depth review. Choice D is incorrect as the client should perform BSE when her breasts are least tender for optimal detection of any abnormalities.

5. The nurse is preparing to administer a unit of packed red blood cells (PRBCs) to a client. Which action is most important for the nurse to take?

Correct answer: A

Rationale: Verifying the client's blood type is crucial before administering PRBCs to ensure compatibility and prevent transfusion reactions. Checking the client's blood type is essential in blood transfusions. Ensuring the PRBCs are warm is not a priority as the temperature should be within a specific range regardless of the client's preference. Checking the client's vital signs is important but not as crucial as verifying the blood type before a blood transfusion. Obtaining the client's consent is important for any procedure but does not directly impact the safety and success of administering PRBCs.

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