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Test Code UAIFF Urinalysis with Reflex Microscopy and Culture if Indicated

Important Note

Urine Chemistry testing will always be performed.  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.

Urine culture testing will be performed when any of the following occurs:

  • Moderate or Large Leukocyte Esterase
  • Positive Nitrite
  • >9 WBCs per HPF
  • >1+ Bacteria

Additional Codes

LAB2288

Specimen Required

Container Type:

Optimal:  Sterile urine cup with orange lid

NOT Acceptable: Clean container
Optimal Collection Volume: 

50 mL
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 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
UGL Glucose, Urine Y Y
UBIL Bilirubin N Y
UTP Protein, Urine Y Y
UPH pH, Urine Y Y
UHGB Hemoglobin, Urine N Y
UKET Ketones, Urine N Y
UROB Urobilinogen N Y
UNIT Nitrite N Y
ULEU Leukocyte Esterase N Y
USPG Urine Specific Gravity Y Y
UCOL Urine Color N Y
UAPR Urine Appearance N Y
URBC Urine Red Blood Cells N N
UWBC Urine White Blood Cells N N
UEPI Urine Epithelial Cells N N
UBAC Urine Bacteria N N
HCAST Hyaline Casts N N
UCLT Urine Culture Y 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 when necessary.

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
  • Clean container (Must be collected in a sterile urine cup because of possible urine culture reflex)

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)
UCLT Urine Culture No Growth  

LOINC Code Information

 

Test ID Test Order Name Order LOINC Value
UAIFF Urinalysis with Reflex Microscopy and Culture if Indicated 58077-9
UCLT Urine Culture 630-4

CPT Code Information

Urinalysis with microscopy NOT reflexed 81003
Urinalysis with microscopy reflexed 81001
Urine Culture 87086

 

Sample Retention Time

24 hours

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