Urinalysis, Complete, with Reflex to Culture
Test Code
Clinical Significance
Urinalysis, Complete, with Reflex to Culture - Dipstick urinalysis is important in accessing the chemical constituents in the urine and the relationship to various disease states. Microscopic examination helps to detect the presence of abnormal urine cells and formed elements. Culture may identify the organism(s) causing infection.
Test Resources
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Test Details
If any of the following Urinalysis results are applicable, then a Culture, Urine will be performed at an additional charge (CPT code(s): 87086).
Presence of Leukocyte esterase alone
Presence of WBC's (>5/hpf) alone
Presence of Yeast
Presence of Bacteria and the presence of WBCs (>5/hpf) or Leukocyte esterase
Presence of Nitrite and the presence of WBCs (>5/hpf) or Leukocyte esterase
If culture is positive, CPT code(s): 87088 (each isolate) will be added with an additional charge.
Identification will be performed at an additional charge (CPT code(s): 87077 or 87140 or 87143 or 87147 or 87149).
Antibiotic susceptibilities are only performed when appropriate (CPT code(s): 87181 or 87184 or 87185 or 87186).
Methodology
Reference Range(s)
| Color | Yellow |
| Appearance | Clear |
| Specific Gravity | 1.001-1.035 |
| pH | 5.0-8.0 |
| Glucose | Negative |
| Bilirubin | Negative |
| Ketones | Negative |
| Occult Blood | Negative |
| Protein | Negative |
| Nitrite | Negative |
| Leukocyte Esterase | Negative |
| WBC | ≤5 /HPF |
| RBC | ≤2 /HPF |
| Squamous Epithelial Cells | ≤5 /HPF |
| Transitional Epithelial | ≤5 /HPF |
| Renal Epithelial Cells | ≤3 /HPF |
| Bacteria | None seen |
| Calcium Oxalate Crystals | None or Few |
| Triple Phosphate Crystals | None or Few |
| Uric Acid Crystals | None or Few |
| Amorphous Sediment | None or Few |
| Crystals | None seen |
| Hyaline Casts | None seen |
| Granular Casts | None seen |
| Casts | None seen |
| Yeast | None seen |
Alternative Name(s)
Preferred Specimen(s)
Submit two separate specimens:
1) 10 mL urine submitted in urinalysis transport tube (yellow-top, blue fill line, preservative tube)
2) 4 mL (fill to minimum line printed on tube; unpreserved for cultures) urine in urine culture tube (gray-top) or UriSponge™ transport
Alternative Specimen(s)
Yellow/red swirl-topped conical transport tube with preservative • 3 mL unpreserved urine cup
Minimum Volume
Preserved (yellow-top, blue fill line): 3 mL
Urine in urine culture tube (gray-top): Must be filled to minimum line printed on tube
Completely saturated UriSponge transport
Unpreserved (culture): 0.5 mL
Unpreserved: 1 mL
*Submitting less than 5 mL may result in partial result reporting.
Collection Instructions
Encourage clean catch mid stream samples to minimize contamination and improve accuracy. Label the sample appropriately.
Transport Container
Yellow-top, blue fill line urinalysis transport tube and
Gray-top urine transport tube or UriSponge transport
Transport Temperature
Preserved: Room temperature
Unpreserved: Refrigerated (cold packs)
Specimen Stability
- Preserved urine
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Unpreserved urine
Refrigerated: 24 hours
Reject Criteria
Unpreserved specimen received at room temperature • Unpreserved refrigerated specimen >24hrs old
Setup Schedule
1) 10 mL urine submitted in urinalysis transport tube (yellow-top, blue fill line, preservative tube)
2) 4 mL (fill to minimum line printed on tube; unpreserved for cultures) urine in urine culture tube (gray-top) or UriSponge™ transport
Urine in urine culture tube (gray-top): Must be filled to minimum line printed on tube
Completely saturated UriSponge transport
Unpreserved (culture): 0.5 mL
Unpreserved: 1 mL
*Submitting less than 5 mL may result in partial result reporting.
Gray-top urine transport tube or UriSponge transport
Unpreserved: Refrigerated (cold packs)
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Unpreserved urine
Refrigerated: 24 hours