A client is being discharged with a prescription for warfarin. Which instruction should the nurse provide this client regarding diet?
Increase the intake of dark green leafy vegetables while taking warfarin.
Eat two servings of dark green leafy vegetables daily and continue for 30 days after warfarin therapy is completed.
Eat approximately the same amount of leafy green vegetables daily so the amount of vitamin K consumed is consistent.
Avoid eating any foods that contain any vitamin K because it is an antagonist of warfarin.
The Correct Answer is C
Choice A reason: Increasing the intake of dark green leafy vegetables while taking warfarin is not a good instruction because it can decrease the effectiveness of warfarin. Dark green leafy vegetables are rich in vitamin K, which is a coagulation factor that counteracts the anticoagulant effect of warfarin.
Choice B reason: Eating two servings of dark green leafy vegetables daily and continuing for 30 days after warfarin therapy is completed is not a good instruction because it can cause bleeding complications. Dark green leafy vegetables are rich in vitamin K, which is a coagulation factor that counteracts the anticoagulant effect of warfarin. Stopping warfarin while continuing to eat high amounts of vitamin K can increase the risk of clot formation and thromboembolism.
Choice D reason: Avoiding eating any foods that contain any vitamin K because it is an antagonist of warfarin is not a good instruction because it can cause bleeding complications. Dark green leafy vegetables are rich in vitamin K, which is a coagulation factor that counteracts the anticoagulant effect of warfarin. Eliminating vitamin K from the diet can increase the sensitivity to warfarin and cause excessive bleeding and bruising.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A: Moderate amount of foul-smelling lochia. This is the most indicative finding of a postpartum infection, as it suggests that the client has endometritis, which is an inflammation of the uterine lining. Endometritis is a common cause of maternal morbidity and mortality, and requires prompt antibiotic treatment.
Choice B: Blood pressure of 122/74 mm Hg. This is a normal blood pressure for a postpartum client, and does not indicate an infection. The reference range for blood pressure is 90/60 to 140/90 mm Hg.
Choice C: Oral temperature of 100.2°F (37.9°C.. This is a slightly elevated temperature for a postpartum client, but it does not necessarily indicate an infection. The reference range for oral temperature is 97.6 to 99.6°F (36.4 to 37.6°C.. A mild fever may occur in the first 24 hours after delivery due to dehydration or hormonal changes.
Choice D: White blood cell count of 19,000/mm³ (19 x 10⁹/L). This is a high white blood cell count for a postpartum client, but it does not indicate an infection. The reference range for white blood cell count is 5,000 to 10,000/mm³ (5 to 10 x 10⁹/L). A leukocytosis may occur in the first few days after delivery due to stress or tissue injury.
Correct Answer is C
Explanation
Choice A: Yellow-tinged sputum is not a serious adverse effect of linezolid. It may indicate an infection or inflammation in the respiratory tract, but it does not require immediate attention from the health care provider.
Choice B: Nausea and headache are common side effects of linezolid. They are usually mild and self-limiting, and they can be managed with supportive measures such as hydration, rest, and analgesics.
Choice C: Watery diarrhea is a sign of pseudomembranous colitis, a potentially life-threatening complication of linezolid. It is caused by an overgrowth of Clostridium difficile bacteria in the colon, which produce toxins that damage the intestinal mucosa. It can lead to dehydration, electrolyte imbalance, sepsis, and perforation. The nurse should report this finding to the health care provider immediately and stop the linezolid infusion.
Choice D: Increased fatigue is not a specific or serious adverse effect of linezolid. It may be related to the underlying infection, anemia, or other factors. It does not require urgent intervention from the health care provider.
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