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| UWHC Lab Test Details | |
|---|---|
| Test Name | Urinalysis with Microscopy |
| Test Code(s) | UA |
| CPT Code(s) | 81001 |
| Methodology | Automated Urine Chemistry and Microscopy Analyzer |
| Days Performed | Daily, 24 hours. |
| In-Lab Turnaround Time | 4 hours. |
| Stat In-Lab Turnaround Time | 1 hour. |
| Collection Requirements | |||
|---|---|---|---|
| Specimen | Urine | ||
| Collection Container |
| ||
| Collection Instructions | First morning void preferred. Refrigerate if transportation to lab is delayed. Indicate whether specimen is midstream, indwelling catheter, single catheter or other method of collection. For midstream urine collection instructions refer to Health Facts for you - Male HF #4247, Female HF # 4236 located on UConnect. | ||
| Collection Volume | 10 mL | ||
| Pediatric Collection Volume | 3 mL | ||
| Specimen Processing Requirements | |||||||
|---|---|---|---|---|---|---|---|
| Stability |
| ||||||
| Sample Analyzed | Urine aliquot | ||||||
| Testing Volume | 10 mL | ||||||
| Pediatric Testing Volume | 3 mL | ||||||
| Specimen Transport | Transport specimen to the laboratory immediately. Transport with coolant pack if coming from clinic location. | ||||||
| Unacceptable Criteria | Samples held at room temperature for more than 2 hours or samples refrigerated for more than 24 hours are not acceptable. | ||||||
| Interpretation | |||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reference Interval | Age 0 days and up:
Dipstick:
Microscopic Findings:
| ||||||||||||||||||||||||||||||||||
| Effective Date of Reference Range | Wed, 09 Jan 2013 14:47:00 CST | ||||||||||||||||||||||||||||||||||
| Critical Calls | View here | ||||||||||||||||||||||||||||||||||
| Additional Information | Conversion and Sensitivity Chart Link
* All UW Health Laboratories may use a screening method for specific gravity, based on a colorimetric test strips which reports only the ionic solutes. If a specific gravity is performed via colorimetric test strip, the following comment will appear: Only ionic solutes measured. For both ionic and nonionic solutes order “Specific Gravity, Urine”.The refractometer method is routinely included in urinalysis performed at the UH and TAC Laboratories and is the method used when "SPECIFIC GRAVITY, URINE" is ordered. The refractometer method includes both ionic and non-ionic solutes. Included in ionic solutes are sodium, chloride, sulfate, phosphate, and ammonium. Included in non-ionic solutes are urea, glucose, and protein. The reportable range is 1.000 to ≥1.050. ** Positive screen not confirmed. Clinical correlation recommended. *** If bacteria are undetected or present at very low levels, bacteria will be reported as NEGATIVE. Higher levels will be reported as PRESENT or MANY. The presence of bacteria is not necessarily indicative of urinary tract infections. (Van Nostrand, J.D. et al, Am J Clin Path 113:709-713). **** Squamous Epithelial Cells (SEC), present in a urine specimen likely enter from sites distal to the bladder. SEC may indicate the possibility of other contaminants such as bacteria. Clean catch (midstream) urine collection may reduce the possibility of contamination. For midstream urine collection instructions refer to Health Facts for you: Male: https://uconnect.wisc.edu/clinical/pted/hffy/genitourinary/4247.hffy Or Female: https://uconnect.wisc.edu/clinical/pted/hffy/diagnostic-tests/4236.hffy A comment will indicate high levels of SEC. Results of all analytes will be reported, and the provider should decide if recollection is needed. | ||||||||||||||||||||||||||||||||||
