A nurse is preparing a client for discharge home after an admission for bilateral pulmonary emboli. The client is prescribed warfarin in addition to regular daily medications. Which of the following actions should the nurse take?
Advise the client that over-the-counter medications remain safe to consume as needed.
Consult the pharmacist about potential interactions between the client’s regular medications and warfarin.
Recommend the client take warfarin at the same time as other medications.
Tell the client they can continue to drink cranberry juice while taking warfarin.
The Correct Answer is B
Choice A reason: Advising over-the-counter medications as safe is incorrect, as many, like NSAIDs, increase warfarin’s bleeding risk by inhibiting platelets or affecting liver metabolism. Warfarin’s narrow therapeutic index requires careful management to prevent hemorrhage, making broad safety claims dangerous without specific evaluation.
Choice B reason: Consulting the pharmacist identifies interactions with warfarin, a vitamin K antagonist metabolized by CYP450 enzymes. Many drugs alter warfarin’s efficacy, risking thrombosis or bleeding. Pharmacist expertise ensures safe polypharmacy, maintaining therapeutic INR levels critical for managing pulmonary emboli effectively.
Choice C reason: Recommending warfarin with other medications ignores interaction risks and timing needs. Warfarin’s absorption is unaffected by timing, but CYP450 interactions can alter INR. This advice is irrelevant to safety, missing the need for individualized regimen assessment to prevent complications in anticoagulation therapy.
Choice D reason: Cranberry juice may enhance warfarin’s effect by inhibiting CYP2C9, increasing INR and bleeding risk. Advising its use without monitoring is unsafe, as dietary factors can destabilize anticoagulation, potentially causing hemorrhage in clients with pulmonary emboli, requiring careful dietary guidance.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Using gauze to cover an infant’s IV site obscures visualization, delaying detection of infiltration or infection. Transparent dressings are preferred, as infants’ small veins are prone to complications. Gauze increases risk by hiding signs like swelling, critical for early intervention in pediatric IV management.
Choice B reason: Monitoring an IV site every 8 hours is inadequate for infants, who need hourly checks due to small vein fragility and high infiltration risk. Frequent assessment detects complications like phlebitis or extravasation early, ensuring vascular integrity and preventing tissue damage in pediatric patients.
Choice C reason: Inserting an IV in the foot is less preferred, as scalp or hand veins are more accessible and stable in infants. Foot IVs risk dislodgement from movement and may impair circulation, increasing complications like tissue damage, making this a suboptimal choice for IV placement.
Choice D reason: A 24-gauge catheter is ideal for infants, as their small veins require smaller needles to minimize trauma and infiltration. This size ensures adequate fluid or medication delivery while reducing vascular damage, aligning with pediatric IV guidelines for safe and effective venous access.
Correct Answer is B
Explanation
Choice A reason: Fibromyalgia, a chronic pain condition, is not a contraindication for oral contraceptives. Estrogen and progesterone do not exacerbate fibromyalgia’s musculoskeletal or neurological symptoms, as they primarily affect hormonal pathways, making contraceptives safe for use in clients with this condition.
Choice B reason: Hypertension is a contraindication for oral contraceptives, as estrogen increases renin-angiotensin activity, elevating blood pressure. This risks cardiovascular events like stroke or myocardial infarction, especially in clients with existing hypertension, necessitating alternative contraception to avoid vascular complications.
Choice C reason: Iron-deficiency anemia is not a contraindication, as oral contraceptives may reduce menstrual bleeding, improving anemia by decreasing iron loss. Their hormonal effects do not impact erythropoiesis, making them potentially beneficial for anemic clients, unlike hypertension, which poses risks.
Choice D reason: Human papillomavirus (HPV) is not a contraindication, as it affects cervical epithelium, not hormonal pathways. While some studies suggest a weak link to cervical cancer, HPV vaccination and screening mitigate risks, making oral contraceptives safe for clients with HPV.
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