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.
Ritchie Valen's brother Bob Morales is still alive today, and lives with his wife in California. He was present at the Surf Ballroom in Clear Lake Iowa in 2009 for the 50 Win â¦ ters Later tour of the Winter Dance Party.t this  point he took the name Ritchie because, as Keane said, There were  a bunch of 'Richies' around at that time, and I wanted it to be  different.. Similarly, it was Keane who decided to shorten his  surname to Valens from Valenzuela in order to broaden his  appeal.