Correct Answer: B

Rationale: The correct next step for the nurse is to irrigate the NG tube with sterile water. This action helps relieve blockages that may be causing the symptoms of nausea and decreased gastric secretions. Administering an antiemetic (Choice A) may mask the underlying issue without addressing the possible blockage. Increasing the suction setting (Choice C) is not indicated without first addressing the potential blockage. Replacing the NG tube (Choice D) is also premature before attempting to clear any obstructions.

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.

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: Phlebitis, inflammation of a vein, is a complication that requires prompt action. The most appropriate next step is to discontinue the IV infusion and notify the healthcare provider. Applying a warm compress, increasing the IV flow rate, or applying an ice pack are not appropriate interventions for phlebitis. Warm compresses may worsen inflammation, increasing the IV flow rate could exacerbate the condition, and ice packs are not recommended for phlebitis.

Correct Answer: D

Rationale: Dehydration management involves a comprehensive approach that includes monitoring fluid intake to assess the severity of dehydration, encouraging oral rehydration to replenish fluids orally if the patient can tolerate it, and administering IV fluids in severe cases where oral intake is insufficient. Choosing just one of these options may not address the diverse needs of patients with dehydration. Therefore, selecting 'All of the above' is the most appropriate response as it encompasses the various strategies required for effective dehydration management.