An adult with arthritis has been receiving treatment with naproxen and now reports ongoing stomach pain, increasing weakness, and fatigue. Which laboratory test should the nurse monitor?

Choice A reason: This is a correct answer because determining if the mother has recently experienced a fall is important to rule out any head injury or concussion that could cause confusion. Parkinson's disease can increase the risk of falls due to impaired balance, coordination, and mobility.

Choice B reason: This is not a correct answer because reviewing the client's current food and medication allergies is not relevant to the mother's confusion. However, it may be important to review the client's current medications and dosages to check for any adverse effects or interactions that could affect cognition.

Choice C reason: This is not a correct answer because encouraging increased intake of high protein foods is not helpful for the mother's confusion. In fact, high protein foods may interfere with the absorption of levodopa, a medication used to treat Parkinson's disease symptoms. The nurse should advise the daughter to consult with a dietitian about the optimal timing and amount of protein intake for her mother.

Choice D reason: This is a correct answer because instructing the daughter to check her mother's temperature is important to detect any fever or infection that could cause confusion. Older adults are more susceptible to infections such as urinary tract infections (UTIs), pneumonia, or sepsis, whih can affect mental status.

Choice E reason: This is a correct answer because asking if the mother is experiencing any pain with urination is important to screen for any UTI that could cause confusion. UTIs are common in older adults due to reduced bladder function, incomplete emptying, and decreased immunity. UTIs can cause symptoms such as dysuria, frequency, urgency, hematuria, and delirium.

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.