FDM vs. FDMA. Frequency Division Multiplexing, or FDM, is a multiplexing technique for the physical layer that allows multiple low bandwidth signals to share the same high bandwidth frequency range.It is achieved by allocating a smaller frequency range to each signal that is using the same channel.ummary: 1. FDM is a physical layer multiplexing technique, while FDMA is a data link layer access method. 2. Using FDM to allow multiple users to utilize the same bandwidth is called FDMA.
The MCV is a valuable tool in the initial classification of anemia and helps determine the. most cost effective strategy for evaluating the etiology of a patientâs anemia. For. example, the presence of microcytosis should lead to iron studies as part of the initial.
The ferritin blood test measures the level of ferritin in the blood. Ferritin is a protein found inside cells that stores iron so your body can use it later.A ferritin test indirectly measures the amount of iron in your blood.he amount of ferritin in the blood (serum ferritin level) is directly related to the amount of iron stored in your body. Iron is important for red blood cell production. Your doctor may order this test if you have signs or symptoms of anemia due to low iron.