Urine Culture, Prenatal, With Group B Streptococcus Susceptibility Reflex
Use
Evaluation of pregnant women for asymptomatic bacteriuria has been recommended.1
Special Instructions
Specimens from other sources, such as genital, stool, urine, upper and lower respiratory specimens, cannot be cultured under the aerobic bacterial culture test number. If specimens are incorrectly submitted with an order for aerobic bacterial culture, the laboratory will process the specimen for the test based on the source listed on the test request form. The client will not be telephoned to approve this change, but the change will be indicated on the report.
Limitations
A single culture is about 80% accurate in detecting bacteriuria in females. If antimicrobial therapy is administered at the time of specimen collection, any level of bacteriuria may be significant. When more than two organisms are recovered, it may indicate contamination, undermining the significance of identification and susceptibility testing. Specimens from Foley catheters may represent colonization rather than true bacteriuria.
Methodology
Culture-based
Biomarkers
LOINC Codes
- 630-4
- 630-4
Result Turnaround Time
2-4 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
To fill line on Vacutainer® gray-top urine culture transport tube
Minimum Volume
Not provided
Container
Vacutainer® gray-top urine culture transport tube
Collection Instructions
See Urine Culture, Comprehensive [008086].
Patient Preparation
See Urine Culture, Comprehensive [008086].
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Unrefrigerated, unpreserved specimen older than two hours may be subject to overgrowth; unlabeled specimen or name discrepancy; specimen in expired container; prolonged delay (>36 hours) for urine; specimen collected via Foley catheter
Other tests from different labs that may be relevant