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Epic Test Code LAB21017 Urinalysis, Microscopic Examination

Performing Location(s)

BMC,CRH,LFH,HRK,OCH,FTT,FOX

Synonyms

Microscopic only

Specimen Type

Random Urine

Preferred Container

Random Urine Tube

Minumum Volume to Submit for Testing

5 mL Urine

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

See Causes of Rejection for temperature requirements.
May be refrigerated up to 24 hours

DO NOT USE CHEMICAL PRESERVATIVES

Transportation Needs

Deliver specimen to the laboratory within 1 hour of collection. If not possible see “Storage Requirements”

Causes for Rejection

Mislabeled or unlabeled specimen

Specimen received in container with Chemical Preservatives

>1 hrs room temperature

 > 24 hours refrigerated

Quantity insufficient for analysis

Interference by chromogen metabolite from certain antibiotics

Gross hemolysis

Reference Values

 

Microscopic
Parameter Population Units Reference Range
RBC's All populations #/hpf 0-2
WBC's All populations #/hpf <6
Squamous Epithelium All populations #/hpf <6
Transitional Epithelium All populations #/hpf 0-3
Bacteria All populations None None
Crystals All populations #/hpf None
Hyaline Casts All populations #/lpf 0-2
All Other Casts All populations #/lpf None
Critical Values:
  Glucose > 100 mg/dL  (Obstetric or pediatric [<18yrs] only).
  Ketones > 40 mg/dL (Obstetric or pediatric [<18yrs] only).
 

 

Days of Analysis

All

Available STAT

Yes

Includes

Microscopic examination of the urine or urine sediment
When a UMICO is ordered, a urine macroscopic analysis (reagent dipstick testing) is not performed (see entries for Urinalysis, Routine (RTUA) and Urinalysis, Macroscopic Analysis (UMAC) for more information on ordering a urine macroscopic examination).

Additional Information

Suggest early morning first voided urine for maximum concentration of urine analytes and formed elements

Methodology

Manual microscopy, automated using flow cyotmetry and fluorescence

CPT Code

81015

Last Updated

12-May-21 BHD