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Test Code MYGLU Myoglobin, Random, Urine


Specimen Required


Supplies: Urine Myoglobin Transport Tube (T691)

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 sodium carbonate 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).


Useful For

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

 

May suggest a myopathic cause for acute renal failure

Method Name

Latex Particle-Enhanced Immunoturbidometric Assay

Reporting Name

Myoglobin, U

Specimen Type

Urine

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated 7 days MYOGLOBIN TRANSPORT TUBE

Reject Due To

Other Use of any transport tube other than urine myoglobin transport tube (T691) Specimens received frozen

Reference Values

≤21 mcg/L

Day(s) and Time(s) Performed

Monday through Sunday; Continuously

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were 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

NY State Approved

Yes