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Myoglobin, Urine (Southeast Michigan Only)

Myoglobin Screen, Urine

Test Codes

EPIC: LAB1231741, Warde: UMYO

Department

Send Outs

Specimen Collection Criteria

Collect: A random, clean-catch, midstream urine specimen in a screw-capped container (preferred) or other sterile collection container. (Minimum: 1.0 mL)

• Please refer to the Specimen Collection Manual for instructions on Random Urine Collection:
  • Random Urine Collection

Physician Office/Draw Specimen Preparation

Refrigerate (2-8°C or 36-46°F) the specimen immediately after collection and arrange for transportation to the Laboratory. Maintain refrigerated prior to transport. (Minimum: 1.0 mL)

Preparation for Courier Transport

Transport: Urine in a sterile collection container, refrigerated (2-8°C or 36-46°F). (Minimum: 1.0 mL)

Rejection Criteria

• Specimens not collected and processed as indicated. 
• Acidified urine.

In-Lab Processing

Upon receipt in the lab, the urine pH should be adjusted to 8-9 by adding 10% Na₂CO₃ (Sodium carbonate). Mix and send 5.0 mL in a screw capped plastic urine container.

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Unacceptable
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): 7 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with questions.

Laboratory

Sent to Warde Medical Laboratory, Ann Arbor, MI.

Performed

Monday, Thursday. 
Results available within 1-4 days.

Reference Range

0-45 ng/mL

Test Methodology

Latex Particle-Enhanced Immunoephelometry.

Interpretation

The presence of myoglobin in the urine indicates recent muscle damage and may lead to renal tubular damage.

Clinical Utility

Severe injury to striated muscle tissue from crush injuries, high voltage electrical shock and occasionally severe muscle exertion, may cause myoglobinuria.

CPT Codes

83874

Contacts

Last Updated

11/7/2024