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HelpTest Code LAB4279 URINALYSIS w/CULT IF INDICATED
Additional Codes
Labcorp test code 377036
Specimen Type
Preferred Specimen: Yellow Urine Tube, and Urine Grey C&S Tube
Alternative Specimen: Leakproof Plastic Urine Container
Sample Stability
Room Temp: 2 hours
Refrigerated: 24 hours
Specimen Volume
12 mL
Collection Instructions
Collect sample using the clean catch midstream collection procedure or urine cath bag. Maintain sterility . Submit sample in a yellow top urine tube or sterile plastic leakproof container and a grey top urine C&S preservative tube filled completely. If unable to collect enough sample to fill the grey top tube, submit sample in just yellow top tube or other sterile plastic leakproof container.
Specimen Processing
Up to 8 mL aliquot of a random urine specimen in a yellow top urine specimen tube is preferred. Store and transport refrigerated. Protect from light. Extra urine should be aliquoted into a Grey top Urine C&S tube (this grey top tube must be full to maintain perservative /sample ratio).
Rejection Criteria
Specimens that have been at room temperature longer than 2 hours
Minimum Volume
2 mL
Turnaround Time
STAT: 1 hour
Routine: 4 hours
Test Schedule
Daily
Test Components and Reference Ranges
| Test Component | Reference Range | |
| UA, Color | Straw, Yellow, Light Yellow, Dark Yellow | |
| UA, Clarity | Clear | |
| UA, Specific Gravity | 1.001-1.030 | |
| UA, pH | 5.0-7.5 | |
| UA, Protein, mg/dL | Negative | |
| UA, Glucose, mg/dL | Negative | |
| UA, Ketones, mg/dL | Negative | |
| UA, Bilirubin | Negative | |
| UA, Blood | Negative | |
| UA, Nitrite | Negative | |
| UA, Leukocyte Esterase | Negative | |
| UA, Urobilinogen, EU/dL | < 2.0 | |
| UA, RBC, cells/HPF | 0-2 | |
| UA, WBC, cells/HPF | 0-5 | |
| UA, Epithelial Cells, total, cells/HPF | 0-2 | |
| UA, Bacteria | None Seen | |
| UA, Cast, cells/LPF | 0-2 | |
| UA, Path Cast, cells/LPF | None Seen | |
| UA, Crystals | None Seen | |
| UA, Fat/Oval Fat Bodies | None Seen | |
| UA, Mucus | None Seen | |
| UA, Renal Epithelial Cells | None Seen | |
| UA, Sperm | None Seen | |
| UA, Trichomonas | None Seen | |
| UA, Transitional Epithelial Cells | None Seen | |
| UA, WBC Clumps | None Seen | |
| UA, Yeast | None Seen | |
Clinical Information
Urine is considered a “fluid biopsy” of the kidney and provides a wealth of information regarding the patient’s overall kidney and urinary tract health. Results from urinalysis can aid in determining whether the specimen should be sent for culture and further workup, as well as aiding diagnoses of metabolic disorders and liver dysfunction.
Test Limitations
Protect from light.
Method
Colorimetric/Flow Cytometry/Microscopic
CPT Codes
81001