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Test Code UA Urinalysis with Reflex Microscopy

Important Note

Urine Chemistry testing will always be performed, however microscopy will be reflexed only when any of the following occurs:

  • Positive Leukocyte Esterase
  • Positive Hemoglobin
  • Positive Nitrite
  • Positive Glucose
  • Positive Protein
  • Non-clear Appearance

Microscopic testing may be added within 24 hours of specimen collection.  If desired, call the laboratory at 269-341-6440 to add on testing.

Additional Codes

Epic Order Code: LAB348
Sunquest Order Code: UA

Specimen Required

Container Type:

Optimal:  Sterile urine cup with orange lid

 

 

 

 

 

Acceptable: Clean container
Optimal Collection Volume: 

50 mL urine
Collection Instructions:

Please refer to the following collection instructions to provide an optimal specimen:
Processing Instructions: 

If testing will be performed >2 hours after collection, specimen should be transfered into cherry/yellow or yellow urine preservative tube.

Useful For

To screen for, help diagnose and/or monitor several diseases and conditions, such as kidney disorders or urinary tract infections (UTIs).

Profile Information

Test ID   Reporting Name Available Separately Always Performed
UA Urinalysis with Reflex Microscopy Y Y
  Reflex Microscopy N N

Method Name

Urine Chemistry testing is performed using dry pad urine chemistry technology.  Microscopy testing is performed using fluorescent flow cytometry, digital imaging, and manual microscopy.

Stability Information

Specimen Type Temperature Time
Urine in urine cup Refrigerated 24 hours
Urine in urine cup Ambient  2 hours
Urine in preservative tube Ambient/Refrigerated 72 hours

Rejection Due To

  • Large visible particles in urine
  • Unrefrigerated specimen >2 hours old
  • Refrigerated specimen >24 hours old
  • Preserved urine in cherry/yellow tube >72 hours old

 

Specimen Minimum Volume

Collecting minimum volumes can result in a need for sample recollection, and/or a delay in results. Minimum volumes are subjective and cannot account for all aspects of specimen and testing needs. Refer to the Specimen Required section for optimal volumes for laboratory specimens. Contact the Bronson Laboratory if complex collection exceptions occur that require more information.

 

Minimum Volume: 20 mL
Neonate Volume: 2 mL

Performing Laboratory

Bronson Laboratory, Urinalysis- Kalamazoo, Paw Paw, Battle Creek, South Haven

Day(s) Performed

24/7

Reference Values

 Test ID   Test Name Reference Range    Units      
UGL Glucose, Urine Negative mg/dL
UBIL Bilirubin Negative  
UTP Protein, Urine Negative mg/dL
UPH pH, Urine 5.0-8.0  
UHGB Hemoglobin, Urine Negative mg/dL
UKET Ketones, Urine Negative mg/dL
UROB Urobilinogen 0.2-1.0 EU/dL
UNIT Nitrite Negative  
ULEU Leukocyte Esterase Negative  
USPG Urine Specific Gravity 1.003-1.030  
UCOL Urine Color Pale Yellow to Dark Yellow  
UAPR Urine Appearance Clear  
URBC Urine Red Blood Cells 0-3 per High Power Field (HPF
UWBC Urine White Blood Cells 0-2 per High Power Field (HPF)
UEPI Urine Epithelial Cells 0-15 per High Power Field (HPF)
UBAC Urine Bacteria Negative  
HCAST Hyaline Casts 0-4 per Low Power Field (LPF)

LOINC Code Information

 

23356-8

CPT Code Information

Urinalysis with microscopy NOT reflexed 81003
Urinalysis with microscopy reflexed 81001

 

Sample Retention Time

24 hours

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