Final answer:
Sandra should receive palliative care, which aims to relieve symptoms and improve quality of life, possibly including radiotherapy for symptom management, despite the late stage of her lung cancer.
Step-by-step explanation:
Given that Sandra has been diagnosed with lung cancer and aggressive treatments have not been successful, the care recommended at this stage is typically palliative care. This approach focuses on providing relief from the symptoms and stress of a serious illness, with the goal of improving quality of life for both the patient and the family. Palliative care is provided by a specially-trained team of doctors, nurses, and other specialists who work together with a patient's other doctors to provide an extra layer of support. It is appropriate at any age and at any stage in a serious illness and can be provided along with curative treatment.
Considering the oncologist's prognosis of about six months to live, palliative treatment options for Sandra may include radiotherapy to alleviate symptoms and potentially prolong life, despite the sensitivity of lung tissue to radiation. Support may also include medications for pain relief and other symptomatic treatments designed to preserve comfort and improve Sandra's quality of life during this time.