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Test Code LAB4292 URINALYSIS

Specimen Type

Preferred Specimen: Yellow Urine Tube, and Urine Grey C&S Tube
Alternative Specimen: Leakproof Plastic Urine Container

Specimen Volume

10 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Sample Stability

Room Temp: 2 hours
Refrigerated: 24 hours
Tiger top: 72 hours

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).

Method

Colorimetric/Flow Cytometry/Microscopic

Reference Ranges

Color

Appearance

Specific Gravity 1.001-1.030

pH, Urine 5.0-7.5

Protein, Ur Negative

Glucose, Ur Negative

Ketones, Ur Negative

Blood, Ur Negative

Bilirubin, Ur Negative

Leuk Esterase Negative

Nitrite, Ur Negative

Urobilinogen < 2.0 EU/dL

Microscopic Exam: No Reference Ranges listed. Any cells, casts, crystals or other microscopic elements reported must be evaluated in the clinical setting.

Test Components

Color; Appearance; Specific Gravity; pH; Protein; Glucose; Ketones; Blood; Bilirubin; Leukocyte Esterase; Nitrite; Urobilinogen; Microscopic Exam if Indicated

CPT Codes

81003

Rejection Criteria

Specimens that have been at room temperature longer than 2 hours. Any urine contaminated with fecal material or meconium

Test Limitations

Protect from light.