Correct Answer: D

Rationale: All of the above options are essential in preventing deep vein thrombosis (DVT) in post-operative patients. Encouraging early ambulation helps prevent blood stasis in the lower extremities, reducing the risk of DVT. Administering anticoagulants can prevent blood clots from forming. Compression stockings promote blood flow, reducing the likelihood of clot formation. Each intervention plays a crucial role in DVT prevention, making the correct answer 'All of the above.' Choices A, B, and C are not exclusive of each other but rather work synergistically to provide comprehensive prevention against DVT.

Correct Answer: B

Rationale: The correct answer is B: Bananas. Bananas are high in potassium, which helps counter the potassium-depleting effects of furosemide. Furosemide is a loop diuretic that can lead to potassium loss, so including potassium-rich foods like bananas in the diet can help maintain a healthy potassium level. Choices A, C, and D do not specifically address the potassium needs associated with furosemide therapy and are not the most appropriate recommendations in this context.

Correct Answer: D

Rationale: The correct answer is D: 'You should avoid taking this medication with dairy products.' Ciprofloxacin should not be taken with dairy products as they can interfere with the absorption of the medication. Choice A is incorrect because ciprofloxacin should not be taken with antacids containing aluminum or magnesium. Choice B is incorrect as there is no specific limitation on caffeine intake associated with ciprofloxacin. Choice C is incorrect as ciprofloxacin does not typically cause urine to turn dark brown.

Correct Answer: D

Rationale: The correct answer is to increase calcium intake to 1,500 mg per day. Adequate calcium intake is essential for maintaining bone density and reducing the risk of osteoporosis. Walking for at least 30 minutes each day is beneficial for overall health but is not as directly related to osteoporosis prevention as calcium intake. Sunlight exposure is important for vitamin D synthesis, which is necessary for calcium absorption, so avoiding sunlight exposure would not be recommended. Vitamin B12 supplements are not directly related to bone health or osteoporosis prevention, so this would not be the most appropriate recommendation.

Correct Answer: B

Rationale: The correct answer is to wipe the drainage port after emptying. This action helps reduce the risk of infection by maintaining cleanliness. Positioning the drainage bag below the bladder (choice A) is incorrect as it should be positioned below the level of the bladder to prevent backflow of urine. Inserting the catheter using sterile technique (choice C) is not necessary for routine emptying of the drainage bag. Avoiding cleansing the urinary meatus (choice D) is incorrect as proper hygiene should be maintained to prevent infections.