COVID-19: Vaccine information, visitor restrictions, and additional resources | Medicaid: The program is changing and you must take steps to keep your UNC Health providers

Urinalysis (General & Microscopic)

Yellow Top Urine Tube

Specimen Type

Test ID   LAB347
CPT Code(s)   81001
Group/Individual Test   Group
Laboratory   Core Laboratory
Tube Station   30 Routine: 888 STAT
Specimen Routine: 10 mL urine in Yellow Top Urine Tube (No Preservative/Additive), <2 hours old
Pediatric: 1.0 mL urine in Yellow Top Urine Tube (No Preservative/Additive)
Unspun: 2 hours
Room temperature: <2 hours from collection
Refrigerator: 8 hours
Frozen: NO
Transport Deliver urine to lab within 1 hour of collection
Availability Routine: 24 hrs/day
Turnaround Time   STAT 1 hr., Routine 2.5 hrs.
Reference Range Normal: See Table Below
  Critical: Glucose or Ketones: positive in <1 mo old
Spermatozoa in Children
Reference Ranges: Urinalysis
Color    Straw
Turbidity    Clear
pH    5-9
Specific Gravity    1.003-1.030
Protein    Negative
Glucose    Negative
Ketone    Negative
Bile    Negative
Urobilinogen    Trace to 1 mg/dL
Blood   Negative
Leukocyte Esterase    Negative
Nitrite    Negative
WBC    Male: 0-2/hpf Female: 0-5/hpf
RBC    Male: 0-3/hpf Female: 0-4/hpf
Casts    0-1 Hyaline/lpf
Epithelial, Squamous    Varies with Method of Collection
Epithelial, Transitional    0-2
Bacteria:  Clean Catch    Occasional
Bacteria:  Catherized    None seen

Reviewed by jcayless on December 16, 2019

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514