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)
With the conflicting sources I guess we'll never know. As an experienced bass player myself, though, I'd say the playing is more McCartney-style. Funny, I always thought the bass line of Birthday had a very lumpy sound to it, i.e. not really typical of Paul's playing. Let's also not forget that in The Beatles: Rock Band George is shown playing the Fender VI in that song while Paul plays his Epiphone electric as well as the piano.