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A client with atrial fibrillation is prescribed warfarin. What is the most important instruction the nurse should give?
- A. Take the medication with aspirin to improve effectiveness.
- B. Increase intake of green leafy vegetables to support the medication.
- C. Avoid foods high in potassium to reduce bleeding risk.
- D. Avoid alcohol and over-the-counter medications without consulting the provider.
Correct Answer: D
Rationale: The correct answer is D. Clients taking warfarin should avoid alcohol and over-the-counter medications without consulting their healthcare provider, as these can interact with warfarin and increase the risk of bleeding. Aspirin, in particular, can exacerbate this risk. Choice A is incorrect because taking warfarin with aspirin can increase the risk of bleeding. Choice B is incorrect as while green leafy vegetables contain vitamin K which can interact with warfarin, it is more important to maintain a consistent intake rather than increase it. Choice C is incorrect because foods high in potassium do not directly impact the bleeding risk associated with warfarin.
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The nurse is planning to administer two medications at 0900. Which property of the drugs indicates a need to monitor the client for toxicity?
- A. Short half-life
- B. High therapeutic index
- C. Highly protein-bound
- D. Low bioavailability
Correct Answer: C
Rationale: The correct answer is C, 'Highly protein-bound.' Drugs that are highly protein-bound can displace from protein-binding sites, leading to increased free drug levels in the blood, which can result in toxicity. Monitoring the client for toxicity is crucial when administering highly protein-bound drugs. Choices A, B, and D are incorrect. A short half-life does not necessarily indicate a need for monitoring toxicity; a high therapeutic index indicates a wide safety margin between the effective dose and the toxic dose, reducing the risk of toxicity; low bioavailability refers to the fraction of the drug that reaches the systemic circulation unchanged and does not directly relate to the risk of toxicity.
A client undergoing chemotherapy reports extreme fatigue. What should the nurse recommend to manage this symptom?
- A. Increase the dose of chemotherapy.
- B. Rest when needed and maintain a balanced diet.
- C. Perform light physical activity to reduce fatigue.
- D. Consider delaying the chemotherapy treatment.
Correct Answer: B
Rationale: The correct recommendation for managing chemotherapy-induced fatigue is to advise the client to rest when needed and maintain a balanced diet. Increasing the dose of chemotherapy (Choice A) would exacerbate the fatigue and other side effects. While light physical activity (Choice C) can be beneficial, extreme fatigue may require more rest initially. Delaying chemotherapy treatment (Choice D) should only be considered after consultation with the healthcare provider, as timely treatment is usually crucial in cancer care.
The client has been diagnosed with hypertension, and the nurse is providing education on dietary changes. Which food should the client be advised to avoid?
- A. Bananas
- B. Processed meats
- C. Low-fat yogurt
- D. Whole grains
Correct Answer: B
Rationale: Processed meats should be avoided by clients with hypertension as they are high in sodium, which can contribute to elevated blood pressure. It is essential to limit the intake of high-sodium foods to help manage hypertension. Bananas, low-fat yogurt, and whole grains are generally beneficial for heart health due to their nutrient content and should not be avoided in a heart-healthy diet.
The nurse is conducting intake interviews of children at a city clinic. Which child is most susceptible to lead poisoning?
- A. An 8-year-old who lives in a housing project.
- B. A 2-year-old who plays on aging playground equipment.
- C. An adolescent who works in a paint factory.
- D. A 10-year-old with Type 1 diabetes.
Correct Answer: B
Rationale: The correct answer is B. Young children, like the 2-year-old playing on aging playground equipment, are at higher risk of lead poisoning due to their hand-to-mouth behavior and exploration of their environment. Aging playground equipment may have lead-based paint that can be ingested by the child. While children living in housing projects are also at risk due to lead-based paint in older buildings, the 2-year-old child playing on potentially lead-contaminated playground equipment is the most susceptible in this scenario. The adolescent working in a paint factory may face occupational hazards related to lead exposure, but the immediate risk from environmental sources is higher for the 2-year-old. Type 1 diabetes in a 10-year-old is not directly linked to an increased susceptibility to lead poisoning.
A client with deep vein thrombosis (DVT) is prescribed warfarin. What teaching should the nurse provide to the client?
- A. Avoid leafy green vegetables while taking warfarin.
- B. Report any unusual bruising or bleeding.
- C. Take warfarin at the same time every day.
- D. Avoid alcohol consumption while on warfarin.
Correct Answer: D
Rationale: The correct answer is D: 'Avoid alcohol consumption while on warfarin.' Alcohol can increase the risk of bleeding when taken with warfarin, so it should be avoided. Choice A is incorrect as leafy green vegetables contain vitamin K, which can interfere with the anticoagulant effects of warfarin. Choice B is important but not directly related to alcohol consumption. Choice C is a general instruction for medication adherence but not specifically related to the interaction with alcohol.