Choice A rationale:

Administer analgesics as prescribed is the top priority nursing intervention for a patient with Osteosarcoma experiencing significant pain.

Osteosarcoma is a type of bone cancer known for causing severe pain, and effective pain management is crucial for the patient's comfort and well-being.

The nurse should follow the physician's orders and administer analgesics as prescribed to alleviate the pain.

This not only helps in providing immediate relief to the patient but also ensures that the pain is controlled effectively, improving the patient's overall quality of life and ability to participate in necessary treatments and activities.

Choice B rationale:

Offering emotional support to the patient is indeed an essential aspect of holistic care, but in this case, pain management takes precedence.

While emotional support is important, it should not be prioritized over addressing the patient's immediate physical discomfort.

Once the pain is managed, emotional support should be provided as part of comprehensive care.

Choice C rationale:

Monitoring surgical incisions for signs of infection is an important nursing responsibility, especially for post-surgery patients.

However, in this scenario, addressing the patient's significant pain should be the priority.

Infection monitoring should still be done but should not take precedence over pain management.

Choice D rationale:

Collaborating with physical therapists for rehabilitation is a valuable part of the patient's overall care plan, but it is not the immediate priority when the patient is experiencing significant pain.

Rehabilitation and physical therapy can be considered once the pain is under control and the patient's condition stabilizes.