It all depends on which blood test you had done and what you had it done for. Typically u always want something called a CBC (complete blood count) and this checks for blood cancers. Infections....
A simple and common blood test used to test for anemia is CBC or the complete blood count. Technically you do not even need a CBC to just test for anemia. A simple Hemoglobin level can detect anemia....
The most likely test you will have performed is a blood test measuring the amount of Thyroid stimulating hormone (TSH) in your blood. This is usually used as a screening test for hypo- or...