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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Hemoglobin Screen, Urine

Test Code(s): BBUS / HCBBUS

Test Description: Test Component:

Dipstick for presence of red blood cells/hemoglobin and microscopic viewing of red blood cells.

Methodology: Automated Urine Chemistry and Microscopy Analyzer

Clinical Significance: Used to screen for transfusion reactions.

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 4 hours.

Specimen Requirements

Specimen: Random urine

Collection Instructions: Indicate whether specimen is midstream, indwelling catheter, single catheter or other method of collection. Refrigerate if transportation to lab is delayed.

Collection Container: Preferred: Sterile screw cap container

Collection Volume: Preferred: 10 mL
Pediatrics: 3 mL

Sample Analyzed: Urine aliquot

Volume Required: Preferred: 10 mL
Pediatrics: 3 mL

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220)immediately.  Transport with coolant pack if coming from outreach location.

Unacceptable Criteria: Samples held at room temperature for more than 2 hours or samples refrigerated for more than 24 hours are not acceptable.

Stability: Ambient: 2 hours
Refrigerated: 24 hours
Frozen: Not acceptable


Expected Results:

Dipstick finding:

   Hemoglobin: Negative


Microscopic finding:

   RBC: 0-2/hpf

Additional Information:

Conversion and Sensitivity Chart Link

Transfusion Reaction Screen, Urine
Transfusion Reaction Urine Screen

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