Final answer:
True, neutropenia can occur with aplastic anemia, SLE, and radiation, as all can contribute to a decreased production of neutrophils.
Step-by-step explanation:
The statement that neutropenia can also occur with aplastic anemia, Systemic Lupus Erythematosus (SLE), and radiation is true. Aplastic anemia is a condition characterized by the deficient numbers of red blood cell (RBC) stem cells and can be caused by factors such as radiation, chemotherapy, and certain infections.
Systemic conditions like SLE and exposures to radiation are also known to cause neutropenia, a condition where there is an abnormally low count of neutrophils, which are a type of white blood cell important for fighting off infections.