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Test Code LAB0205401 Myoglobin, Random, Urine

Additional Codes

 

Mayo Test ID
MYGLU

 

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Confirming the presence of a myopathy

Method Name

Electrochemiluminescent Immunoassay (ECLIA)

Reporting Name

Myoglobin, Random, U

Specimen Type

Urine


Specimen Required


Supplies: Urine Myoglobin Transport Tube (T691)

Container/Tube: Plastic, 5-mL urine myoglobin transport tube

Specimen Volume: 4 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 within 1 hour of collection. Refrigerate specimen.

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

Additional Information: Urinary myoglobin is highly unstable unless alkalinized with sodium carbonate preservative.


Specimen Minimum Volume

1 mL

Specimen Stability Information

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

Reject Due To

Use of any transport tube other than urine myoglobin transport tube Reject

Reference Values

0-24 mcg/L

Reference values have not been established for patients younger than 18 years; however myoglobin is not expected to be detectable in urine.

Interpretation

Increased excretion of urinary myoglobin is suggestive of one of the disorders or conditions listed in Clinical Information.

 

Most clinically significant elevations are elevated 2 to 10 times normal.

Day(s) Performed

Monday through Sunday

Report Available

1 to 2 days

Specimen Retention Time

7 days

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 US Food and Drug Administration.

CPT Code Information

83874

LOINC Code Information

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

 

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