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.
Learn How to Play Bass From The Beatlesâ Paul McCartney. The Beatlesâ Paul McCartney performs at Alpha TV studios in Birmingham, England, during filming of ABC TV show âThank Your Lucky Starsâ on December 15, 1963. (Mark and Colleen Hayward/Redferns)
The Beatles are nicknamed âThe Fab Fourâ, but they were in fact once a 5-piece band. This line up consisted of guitarists John Lennon, Paul McCartney, and George Harrison, bassist Stuart Sutcliffe, and drummer Pete Best. Sutcliffe was a Beatle from January 1960, until he left the group in June 1961. With his departure, McCartney switched from guitar to bass to fill that vacancy. Best was a Beatle from August 12, 1960, until he was dismissed from the band on August 16, 1962, when he was replaced by drummer Ringo Starr.