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Test Code UMYOGM Myoglobin, Urine

Important Note

Transport specimen to the laboratory as soon as possible.

Specimen must be aliquoted into a urine Myoglobin transport tube within 1 hour of collection if ambient, or within 2 hours if kept refrigerated.

Additional Codes

 

MAYO Test ID

MYGLU

EPIC Test ID

LAB412

 

Reporting Name

Myoglobin, U

Useful For

Confirming the presence of a myopathy associated with any 1 of the disorders listed in Clinical Information

 

May suggest a myopathic cause for acute renal failure

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Urine


Specimen Required


Container/Tube: Plastic, 10-mL urine myoglobin transport tube (T691)

Specimen Volume: 5 mL

Collection Instructions:

1. Collect a preservative-free, random urine specimen.

2. If specimen is at ambient temperature, aliquot the urine to a urine myoglobin transport tube (T691) within 1 hour of collection. Refrigerate specimen.

3. If specimen is refrigerate, aliquot the urine to a urine myoglobin transport tube (T691) within 2 hours of collection.

Additional Information: Urinary myoglobin is highly unstable unless alkalinized with Na2CO3 preservative. Even with alkalinization, myoglobin deterioration is variable and specimen dependent (approximate averages of 10% at 1 day, 20% at 3 days, and 30% at 7 days).


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated 7 days

Reference Values

≤21 mcg/L

Day(s) and Time(s) Performed

Monday through Sunday, continuous

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

83874

LOINC Code Information

Test ID Test Order Name Order LOINC Value
MYGLU Myoglobin, U 2641-9

 

Result ID Test Result Name Result LOINC Value
MYGLU Myoglobin, U 2641-9

Analytic Time

1 day

Reject Due To

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

Use of any transport tube other than urine myoglobin transport tube (T691)

Method Name

Latex Particle-Enhanced Immunoturbidometric Assay