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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Urinalysis with Microscopy, Culture if >5 WBC's/hpf


CPT Code(s): 81001

Methodology: Automated Urine Chemistry and Microscopy Analyzer

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 4 hours.

Specimen Requirements

Specimen: Urine

Collection Instructions: First morning void preferred. Refrigerate if transportation to lab is delayed.  Indicate whether specimen is midstream, indwelling catheter, single catheter or other method of collection.

Collection Container: Preferred: Sterile screw cap container

Collection Volume: Preferred: 10 mL
Pediatrics: 3 mL

Sample Analyzed: Urine aliquot

Volume Required: Preferred: 10 mL
Pediatrics: 3 mL

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220)immediately. Transport with coolant pack if coming from outreach location.  

Unacceptable Criteria: Samples held at room temperature for more than 2 hours or samples refrigerated for more than 24 hours are not acceptable.

Stability: Ambient: 2 hours
Refrigerated: 24 hours
Frozen: Not acceptable


Reference Interval:

Age 0 days and up:



 Specific Gravity  1.005-1.035
 pH  5.0-8.0
 Protein  Negative to trace
 Glucose  Negative
 Ketones  Negative
 Hemastix  Negative
 Bilirubin  Negative     
 Leukocyte Esterase  Negative
 Nitrite  Negative
 Urobilinogen  0.1-1.0 mg/dL


Microscopic Findings:

 WBC  0-5/hpf
 RBC  0-2/hpf
 Bacteria  Not seen
 Squamous Epithelial cells  0-2/hpf

 Renal Epithelial cells

 Not seen or less than 1/hpf

 Few calcium oxalate, few

 amorphous urates or  phosphates

 Casts  0-4 hyaline casts/lpf

Critical Calls: View

Additional Information:


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