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 preparing a client for discharge who has a prescription for enoxaparin (Lovenox) self-administration. What information is most important for the nurse to provide the client about this medication?

Correct answer: A

Rationale: Teaching the client about self-administration techniques for subcutaneous injection is crucial for safe and effective use of enoxaparin. Option A is the correct answer as it directly addresses the client's need to know how to properly administer the medication. Options B, C, and D are important aspects of care but are not the most critical information needed for the client's self-administration of enoxaparin.

3. A nurse is caring for a client who is receiving morphine sulfate via a patient-controlled analgesia (PCA) pump. Which action is most important for the nurse to implement?

Correct answer: A

Rationale: When a client is receiving opioids like morphine sulfate via a PCA pump, the most critical action for the nurse to implement is to monitor the client's respiratory status. Opioids can cause respiratory depression, which can be life-threatening. Monitoring respiratory status allows for early detection of any signs of respiratory compromise. Teaching the client how to use the PCA pump, evaluating pain level, and assessing pain level are important aspects of care but ensuring the client's safety by monitoring respiratory status takes precedence due to the potential risks associated with opioid administration.

4. The nurse is planning care for a 2-year-old child who is scheduled for an infusion of immune globulin for treatment of idiopathic thrombocytopenic purpura (ITP). Which nursing diagnosis has the highest priority for this child?

Correct answer: A

Rationale: The correct answer is 'Risk for infection.' When caring for a child with ITP scheduled for immune globulin infusion, the highest priority is to prevent infection. This is crucial due to the risk of bleeding associated with ITP and the immunosuppression that can be caused by the condition and its treatment. The other options, such as 'Risk for injury,' 'Altered oral mucous membranes,' and 'Risk for fluid volume deficit,' are not as high a priority as preventing infection in this particular situation.

5. The mother of a 6-year-old anemic boy is taught by the nurse to give iron supplements. Which statement indicates that the mother understands the proper administration of iron?

Correct answer: A

Rationale: The correct answer is A because iron supplements are best absorbed on an empty stomach, which maximizes their effectiveness. Giving iron tablets with milk or calcium-rich foods, as mentioned in choice B, should be avoided as they can decrease iron absorption. Choice C is incorrect because iron preparations should not be taken with antibiotics due to potential interactions. Choice D is also incorrect as iron tablets do not cause an increased risk of sunburn, so sunscreen is not necessary specifically due to iron supplementation.

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