Table 1.
Criteria used to interpret urine culturesa
| Culture interpretationb | Culture results |
|---|---|
| Significant growth | Growth at ≥104 CFU/ml of 1 or 2 uropathogens |
| Growth at ≥104 CFU/ml of 1 or 2 uropathogens at a 10-fold higher level than nonuropathogens | |
| Growth at ≥105 CFU/ml of a pure culture of any organism | |
| Insignificant growth | Growth at <104 CFU/ml of any organism(s) |
| Growth at ≥104 CFU/ml of ≥2 nonuropathogens | |
| No growth | <103 CFU/ml |
| Possible contamination | Growth at ≥104 CFU/ml of ≥3 organisms |
a
Adapted from reference 19 with permission from Elsevier.
b
Interpretation of culture results was based on the routine urine culture protocol used by Diagnostic Services of Manitoba (DSM) clinical microbiology laboratories.