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Urinalysis (Chemistry and Microscopic) (087-0157)
Test Mnemonic:

UA
Methodology:

ChemStrip; Microscopy
Performed:

Clinical Chemistry
Turnaround Time:

Routine: 2 hours; STAT: 1 hour
Specimen Requirements:

Test Includes: Gross description; qualitative urine chemistry for pH, protein, glucose, ketone, bilirubin, blood, urobilinogen, leukocyte esterase and nitrite; specific gravity; and microscopic exam of urinary sediment

Collect:  Preferred: Fresh early A.M. mid-stream specimen after overnight fasting; Acceptable: Random urine.  Disposable, 4.5 oz sterile specimen container or plain tube.

Volume: 20 mL

Minimum Volume: Automated UA: 4 mL

Manual UA: 1 - 4 mL (Samples that are insufficient (<1.0 mL) for Manual Urinalysis are rejected, with an exception for Pedi patient (≥0.5mL)

Storage/Transport: A fresh voiding should be examined within 1 hour, or it should be refrigerated (2-8°C).

Causes for Rejection:  Specimens contaminated with feces or less than 1 mL of urine.
Clinical Information:

If applicable, state clinical information that is required to be provided with specimen.
Reference Range:

By report (reports may vary based on instrumentation, patient age and sex)
Note:

  If the specimen is not fresh or has not been kept refrigerated, bacterial growth will occur & result in "ammoniacal" alkaline urine with resultant degeneration of casts and cells. Glycolysis also results in false low glucose findings.
CPT 4 Code:

  81001
Reviewed Tho Nguyen, 3/30/2012

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient.  Components of the organ or disease panels may be ordered individually.  The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-9 code or its verbal equivalent.
 

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