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Urinalysis, Complete
Test Code5463
CPT Codes
81001
Includes
Macroscopic and Microscopic Examinations
Preferred Specimen
10 mL urine - Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Minimum Volume
Preserved: 3 mL
Unpreserved (pediatric only): 1 mL
Unpreserved (pediatric only): 1 mL
Other Acceptable Specimens
3 mL (1 mL minimum) unpreserved pediatric urine cup • 10 mL (3 mL minimum) urine collected in a yellow/red swirl-topped conical transport tube with preservative
Instructions
Encourage mid stream samples to minimize contamination and improve accuracy. Label the sample appropriately and store at room temperature until pick-up.
Note: The yellow-top, blue line tube cannot be used for collection and transport of specimens for urine culture.
**This order code does not include reflex to culture**
If reflex to culture is desired, please order "Urinalysis, Complete, with Reflex to Culture" (order code 3020, Urinalysis, Complete, with Reflex to Culture).
If culture is being ordered separately, submit separate specimen (4 mL gray-top tube).
Transport Temperature
Preserved: Room temperature
Pediatric Unpreserved: Refrigerated (cold packs)
Specimen Stability
Preserved urine
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Unpreserved urine
Refrigerated: 24 hours - Pediatric specimen
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Unpreserved urine
Refrigerated: 24 hours - Pediatric specimen
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unpreserved specimen (adults)
Methodology
Reagent Impregnated Strips/Tablets/Microscopic Examination
Setup Schedule
Set up: Daily; Report available: Next day
Reference Range
| 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 |
Clinical Significance
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 cells and other formed elements.
