Rice Krispies noun (A trademark for) a breakfast cereal made from grains of rice which are steamed, sweetened, and then heated rapidly in the manner of popcorn; (also in singular) a piece of this cereal.
A ferritin test measures the amount of ferritin in your blood. Ferritin is a blood cell protein that contains iron. A ferritin test helps your doctor understand how much iron your body is storing.
A simple ferritin test can be performed by your doctor to determine if your ferritin levels are low. The test involves a simple blood draw. Normal serum ferritin levels are 12 to 150 nanograms per milliliter and 12 to 300 nanograms per milliliter for females and males respectively. These normal values may vary slightly depending on the laboratory used.