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Culture, Urine
Test CodeURNC
Includes
If culture is positive, Identification will be performed at an additional charge. Antibiotic susceptibilities are only performed when appropriate
Preferred Specimen
4 mL random, clean catch, midstream urine collection
Minimum Volume
0.5 mL
Other Acceptable Specimens
Indwelling catheter collected urine • Unpreserved specimens <3 mL from pediatric patients, patients with renal abnormalities, or difficult collections are acceptable when placed in a sterile leak-proof container
Instructions
Send to lab ASAP
Transport Container
Sterile container
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Ambient: 2 hours
Regrigerated: 24 hours
Regrigerated: 24 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Preserved urine, received frozen
Methodology
Culture
Setup Schedule
24/7
Report Available
3 days
Clinical Significance
Urinary tract infections (UTI) are among the most common human infections. Infections may involve the urethra, bladder, kidneys, other organs, or adjacent tissues and may be complicated by bacteremia. The predictors of UTI are pyuria and bacteriuria. Microscopy and other rapid detection systems can detect pyuria. In voiding, the urine must pass through sites containing normal flora. Quantitative culturing of urine is an established tool to differentiate significant bacteriuria from contamination introduced during voiding. However, studies have shown that when the calibrated method is performed, even perfectly, colony counts are only approximations.
