Factors that cause abnormal levels of urobilinogen in urine. The urobilinogen amount in urine could deviate from the normal range; it could be found to be lower or higher. Regardless, any value that does not conform to the standard range is indicative of a health problem. 1  Low levels of Urobilinogen.
Use in Major League Baseball . The concept of the Designated Hitter was proposed in the early 1900s and came fairly close to being initiated in the 1920s. It was finally approved in the 1970s. The Designated Hitter is used only in the American League (since 1973) and was never adopted in the National League. The rule allowing a DH has always been controversial since some want the rule eliminated, some want the rule adopted in both leagues and some want the rule to remain in its current state.
A no-hitter is defined by Major League Baseball as follows:  An official no-hit game occurs when a pitcher (or pitchers) allows no hits during the entire course of a game, which consists of at least nine innings. pitcher who prevents the opposing team from achieving a hit is said to have thrown a no-hitter. This is a rare accomplishment for a pitcher or pitching staff: only 294 have been thrown in Major League Baseball history since 1876, an average of about two per year.