critical value

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critical value

[′krid·ə·kəl ′val·yü]
(mathematics)
The value of the dependent variable at a critical point of a function.
(statistics)
A number which causes rejection of the null hypothesis if a given test statistic is this number or more, and acceptance of the null hypothesis if the test statistic is smaller than this number.
References in periodicals archive ?
To measure critical laboratory value reporting in multiple institutions over time and to examine the practice patterns and demographic factors associated with sustained improvement in critical value reporting.
Ever since George Lundberg introduced the concept of critical laboratory values in the 1970s (1), medical technologists have considered it their duty to expeditiously report these values by calling the respective patient units and reading the numbers to the caretaker.
Other examples in which the DocLink system would be useful include notifying multiple members of transplant teams simultaneously, handling last-minute changes in departmental or group schedules, notifying physicians regarding critical laboratory values and facilitating recurring pharmacy system alerts that may indicate a drug-interaction problem that needs to be addressed.

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