The measurement quoted in dB describes the ratio (10 log power difference, 20 log voltage difference, etc.) between the quantity of two levels, the level being measured and a reference.
Alt Codes for Bracketing ; Alt Code Symbol Description Alt 40 ( Open Bracket Alt 41 ) Close Bracked Alt Codes for Degree of Accuracy ; Alt Code Symbol Description Alt 241 Â± Plus or Minus Alt Codes for Fractions ; Alt Code Symbol Description Alt 47 / Fraction seperator
Algorithm to manage mild ALT and AST abnormalities. (ALT = alanine transaminase; AST = aspartate transaminase.). Adapted with permission from American Gastroenterological Association. Medical position statement: evaluation of liver chemistry tests.