Hi Michele,
There is a good defintion of Hemolytic anemia at
http://www.nlm.nih.gov/medlineplus/ency/article/000571.htm"Hemolytic anemia is a condition of an inadequate number of circulating red blood cells (anemia) caused by premature destruction of red blood cells. There are a number of specific types of hemolytic anemia, which are described individually....Hemolytic anemia occurs when the bone marrow is unable to compensate for premature destruction of red blood cells by increasing their production. When the marrow is able to compensate, anemia does not occur.
There are many types of hemolytic anemia, which are classified by the location of the defect. The defect may be in the red blood cell itself (intrinsic factor), or outside the red blood cell (extrinsic factor).
Causes of hemolytic anemia include infection, certain medications, autoimmune disorders, and inherited disorders. Types of hemolytic anemia include:
* Sickle-cell anemia
* Paroxysmal nocturnal hemoglobinuria
* Hemoglobin SC disease
* Hemolytic anemia due to G6PD deficiency
* Hereditary elliptocytosis
* Hereditary spherocytosis
* Hereditary ovalocytosis
* Idiopathic autoimmune hemolytic anemia
* Non-immune hemolytic anemia caused by chemical or physical agents
* Secondary immune hemolytic anemia
* Thalassemia"
As you see, thalassemia is also one of the causes. This may present a need for monitoring actual iron levels in his body. Some types of hemolytic anemia can greatly reduce iron stores in the body, but normally those who carry the thal trait are advised against taking iron, as it wll not improve the red blood cell count and can lead to iron levels that aren't healthy. Has your son's blood ferritin been tested? Some types of hemolytic anemia can cause drastic drops in iron levels, and iron supplelmentation would be needed. However, iron should never be taken unless the level is actaully known to be low and a since a complete blood count won't tell you the iron level, a serum ferritin test will give you some idea of his levels. A universal recommendation is taking folic acid supplements. It does help to increase the volume of red blood cells and is routinely recommended for treating all forms of thalassemia and many other anemias.
I commend your doctors on the diagnosis and the care. It does sound like all the right things are being monitored and it does have the potential to be similar to intermedia. Your doctor is wise to treat it as so.