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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Myoglobin, Urine

Test Code(s): MYGB / GM1540

CPT Code(s): 83874

Methodology: Ammonium Sulfate Precipitation

Clinical Significance: Urine Myoglobin may be useful in suspected skeletal muscle injury or acute kidney failure without obvious cause.  Urine Myoglobin is not useful for monitoring cardiac injury.  For suspected cardiac injury see Troponin.

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 2 hours.


Specimen Requirements

Specimen: Random urine

Collection Instructions: Urine specimen must be FRESH (less than 2 hours old).

Collection Container: Preferred: Sterile screw cap container

Collection Volume: Preferred: 10 mL
Pediatrics: 10 mL

Sample Analyzed: Urine aliquot

Volume Required: Preferred: 10 mL
Pediatrics: 10 mL

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

Unacceptable Criteria: Specimens greater than 2 hours old when received by the laboratory are not acceptable.

Stability: Ambient: 2 hours
Frozen: Not acceptable


Interpretation

Expected Results:

Negative

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