Final answer:
A bone marrow biopsy is the procedure performed to confirm a leukemia diagnosis in Sophia Sorenson. It specifically involves the examination of a red bone marrow sample for the presence of leukemia cells.
Step-by-step explanation:
To confirm the diagnosis of leukemia in Sophia Sorenson, a bone marrow biopsy is the procedure typically performed. This diagnostic test involves taking a sample of red bone marrow to examine it for abnormal cells or the presence of cancer, such as leukemia. While other tests such as a lumbar puncture, CT scan, or blood test might be used in different contexts to diagnose various conditions, the bone marrow biopsy is the key procedure to rule out or confirm leukemia.
The bone marrow biopsy provides crucial information about the health of the bone marrow, including whether leukemia cells are present. During the procedure, a needle is inserted into the bone to obtain a small amount of marrow, usually from the hip bone. The sample is then examined under a microscope for signs of cancer. If leukemia cells are found, the diagnosis is confirmed, which can guide subsequent treatment decisions.