â¤0.2 mg/dL. Measurement of the levels of bilirubin is used in the diagnosis and treatment of liver, hemolytic, hematologic, and metabolic disorders, including hepatitis and gall bladder obstruction. The assessment of direct bilirubin is helpful in the differentiation of hepatic disorders.
Ritchie Valens. In an all too brief career, Ritchie Valens was the first Chicano rock and roll star, having his best remembered hit, La Bamba, just one month before his untimely death with Buddy Holly and the Big Bopper on February 3, 1959.
âIt was up to Ritchie to take care of us from the time he was 15 years old.â. On Friday, his siblings loaned to the Surf Ballroom & Museum personal memorabilia from Ritchie Valens including a wallet their brother carried at the time of his death and a bow tie.âWe donât have much of Ritchieâs things,â Lemos said.n Friday, his siblings loaned to the Surf Ballroom & Museum personal memorabilia from Ritchie Valens including a wallet their brother carried at the time of his death and a bow tie.