Prophylactic Cranial Radiation Is a Treatment Used

Prophylactic cranial radiation is a treatment used:

A) To destroy primary brain tumors
B) To prevent micrometastases to the brain from growing into larger tumors (e.g., in diseases such as small cell carcinoma of the lung)
C) To verify the positioning of the patient for radiation therapy, before the actual dose of radiation is administered
D) To prevent bacterial meningitis in immune-suppressed neonates