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Bolded Tests are Performed at a CNE laboratory

 

Clinical  Lab Updates/Memos

 

GENERAL INFORMATION

COLLECTION INSTRUCTIONS

COLLECTION CONTAINERS

ALGORITHMS

                

Mayo Clinic Laboratories

Orderable Name MYGLU Myoglobin, Random, Urine

Additional Codes

CNE Order Code: Myoglobin, U

Useful For

Confirming the presence of a myopathy

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

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.

Day(s) Performed

Monday through Sunday

CPT Code Information

83874

Report Available

1 to 2 days

Reject Due To

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

Method Name

Electrochemiluminescent Immunoassay (ECLIA)