Urinalysis, Routine With Microscopic Examination on Positives
| Urinalysis, Routine With Microscopic Examination on Positives | | | |
| Number | | 003038 |
| CPT | | 81003 |
| Synonyms | | Routine Urinalysis ; UA, Routine |
Test Includes | | Color, appearance, specific gravity, pH, protein, glucose,
ketones, occult blood, leukocyte esterase, nitrite,
bilirubin, and urobilinogen. These tests are done on all
routine urinalysis ordered and if protein, leukocyte,
occult blood, and nitrites are all negative, microscopic
examination is not performed; just the above
parameters are reported. |
| Specimen | | Urine (random) |
| Volume | | 10 mL |
| Minimum Volume | | 2 mL |
| Container | | Routine urinalysis tube, BD urine transport tube, or sterile urine cup |
| Collection | | A voided specimen is usually acceptable. If specimen is likely to be contaminated, a clean catch midstream specimen is desirable. |
| Storage Instructions | | Refrigerate |
| Causes for Rejection | | Improper labeling; tubes with boric acid or tartaric acid (eg, BD gray-top C&S tube); LabCorp red-top C&S tube; Boricon, Bortiex, or Boricult yellow-top C&S tubes; specimen not refrigerated or preserved; specimen more than 48 hours old when unpreserved/refrigerated or more than 72 hours old for BD transport tube |
| Use | | Detect abnormalities of urine; diagnose and manage renal diseases, urinary tract infection, urinary tract neoplasms, systemic diseases, and inflammatory or neoplastic diseases adjacent to the urinary tract |
| Limitations | | Insufficient volume may limit the extent of procedures
performed. Metabolites of PyridiumŪ may interfere with the
dipstick reactions by producing color interference. High
vitamin C intake may cause an underestimate of glucosuria,
or a false-negative nitrite test. Survival of WBCs is
decreased by low osmolality, alkalinity, and lack of
refrigeration. |
| Methodology | | Reagent strip |
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