P pulmonale), but have a low predictive value (~20%). A P wave with increased amplitude can indicate hypokalemia. It can also indicate right atrial enlargement. A P wave with decreased amplitude can indicate hyperkalemia. Bifid P waves (known as P mitrale) indicate left-atrial abnormality-e.g. dilatation or hypertrophy.
SYSTEM is a schema..... Technically -- A schema is the set of metadata (data dictionary) used by the database, typically generated using DDL. A schema defines attributes of the database, such as tables, columns, and properties. A database schema is a description of the data in a database.
Abbreviations. 1  Stat, an abbreviation of photostat. 2  Stat, an abbreviation of the Latin statim, immediately, often used in medical contexts such as in hospital emergency rooms. 3  Stat, an abbreviation of statistic.  Stat, an abbreviation of statistics, more commonly stats in British English contexts.