Description of values of test status

Test Value Meaning
+ 90-100% Positive
- 0-10% positive
(+) 76-89% positive
(-) 11-25% positive
d 26-75% positive
v strain instability

citrobacter

Unique Tests Hierarchy for Seperation from other Organisms

1Aesculine hydrolysis-
2KCN+
3D-tartrate-
4Catalase production+
5Oxidase fermentation+