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Beaumont Laboratory

Myoglobin, Qualitative Urine

Myoglobin Screen, Urine, EPIC: LAB5914, SOFT: MYOU

Specimen Collection Criteria

Collect: A random, clean-catch, midstream urine specimen in a screw-capped container (preferred) or other sterile collection container. (Min: 5.0 mL)

  • A fairly concentrated (first morning void) specimen is preferred.
  • Optimum specimen volume is at least 20 mL.
  • Document the time of the specimen collection.
  • Pease refer to the Specimen Collection Manual for instructions on Random Urine Collection:

Physician Office/Drawsite 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. (Min: 5.0 mL)

Preparation for Courier Transport

Transport: Urine in a sterile collection container, refrigerated (2-8°C or 36-46°F). (Min: 5.0 mL)

Rejection Criteria

  • Specimens not collected and processed as indicated. 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 1 hour
Refrigerated (2-8°C or 36-46°F): 72 hours
Frozen (-20°C/-4°F or below): 1 month

Specimen Storage in Department Prior to Disposal:

Refrigerated (2-8°C or 36-46°F): 7 days

Laboratory

Grosse Pointe Hematology/Urinalysis Laboratory.
Royal Oak Urinalysis Laboratory.
Troy Hematology/Urinalysis Laboratory.

Performed

Sunday - Saturday, 24 hours a day. 
STAT results available within 4 hours of receipt in the Laboratory.
Routine results available within 24 hours.

Reference Range

Negative.

Test Methodology

Manual - Qualitative, visual screen for hemoglobin (dipstick) after precipitation of interfering hemoglobin with ammonium sulfate.

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 Code

83874.

Test Codes

EPIC: LAB5914, SOFT: MYOU

Last Updated

12/29/2017

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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.