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Test Code UMACRS Urinalysis (UA) With Reflex Testing, Routine, Urine, LAB3914

Additional Codes

If ANY of the following criteria are met, a urine microscopic would be performed:

  • Blood is positive (trace or greater)
  • Protein is ≥30 mg/dL
  • Nitrite is positive
  • Leukoesterase is positive (trace or greater)

If ANY of the following criteria are met, a urine culture would be set-up:

  • Macroscopic nitrite is positive
  • Macroscopic leukoesterase is positive (small or greater)
  • Microscopic WBC count >5/hpf
  • Microscopic bacteria is moderate or greater

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

15 mL (minimum volume: 2 mL) from a first-morning urine collection is preferable, but testing can be performed on a random urine collection. Forward promptly. Specimen stability is 1 hour at ambient temperature. If there is a delay in transport of ≤24 hours or if mailing time is ≤24 hours, send specimen refrigerated.

Reference Values

Clarity: clear
Glucose: negative mg/dL

Bilirubin: negative g/dL

Ketones: negative mg/dL

Specific gravity: 1.005-1.030

Blood: negative mg/dL

pH: 5.0-8.0

Protein: negative mg/dL

Urobilinogen: 0.1-1.0 eu/dL

Nitrites: negative mg/dL

Leukocyte esterase: negative
WBC: 0-5/HPF

RBC: 0-3/HPF

Squamous epithelial cells: 0-5/LPF

Note: A positive result is reported as a semi-quantitative number.

Useful For

 

Urinalysis can provide the physician with important information regarding the status of a patient’s health, and can detect metabolic disease and renal disorders. Urinalysis test results are used in at-risk patient groups to assist diagnosis in the following areas:

  • kidney function
  • urinary tract infections
  • carbohydrate metabolism (e.g., diabetes mellitus)

Day(s) Test Set Up

Monday through Sunday

Methodology

Reagent Strips on Automated Reader/Microscopic Analysis

Test Classification and CPT Coding

81003-Automated, Macroscopic

81015-Automated, Microscopic

81001-Automated UA, Macroscopic and Microscopic