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HelpUrinalysis Routine
Additional Codes
LAB6558
Performing Laboratory
MBMC Main Laboratory
Methodology
Dipstick: Spectrophotometric reflectance of light on color reagent pads
Urine color: Spectrophotometry or visual observation
Specific gravity: Refractometry
Clarity: Measurement of the transmission and scatter of light
Testing Algorithm
Testing includes: color, clarity, specific gravity, pH, protein, glucose, ketones, bilirubin, blood, urobilinogen, nitrites, and leukocyte esterase.
Urine microscopics will be performed on any urine with a routine Urinalysis that meets one or more of the following criteria:
- Leukocyte Esterase: Trace or greater
- Nitrite: any positive result
- Protein: 1+ or greater
- Blood: Trace or greater
Specimen Requirements
Specimen Type: Urine, random
Container/Tube: Yellow UA Preservative Tube
Specimen Volume: Full tube
Specimen Minimum Volume: 4 mL
Alternative Container/ Tube: Sterile Cup (see Stability below)
Alternative Specimen Volume: minimum10 mL
Specimen Transport Temperature
Ambient
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: within 4 hours
Reference Values
Specific gravity: 1.001-1.025
pH: 5.0-9.0
Protein: negative
Glucose: normal
Ketones: negative
Bilirubin: negative
Blood: negative
Urobilinogen: negative
Nitrites: negative
Leukocyte esterase: negative
WBC, microscopic: 0-5/hpf
RBC, microscopic: 0-2/hpf
Test Classification and CPT Coding
Test Classification:This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer’s instructions.
CPT Code:
81003-Urine macroscopic only
81001-Urine macroscopic with microscopic (if appropriate)
Special Instructions
- Urine Collection
Stability
Yellow UA PreservativeTube: 72 hours at room temperature or refrigerated
Non-preserved urines: 1 hour at room temperature; 4 hours refrigerated