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Laboratory Test Reference Guide

Laboratory Information

Test Name

Myoglobin urine

External Price (excl. GST)


Specimen Collection

Specimen Collection and Transport Protocols

Send on ice.

Adult Specimen

Fresh random urine. No preservative.

Instructions for Referral to Waikato Lab

Aliquot instructions

Alkalinise dropwise with 5M NaOH to pH 8-9.Centrifuge specimen and analyse immediately if possible - or store frozen.

Aliquot Transport

Urine must be alkalinised to pH 8-9. Send frozen

Test Information



Test Availability

Mon - Sun, 24hrs

Laboratory Turnaround Time

4 hrs


Cobas Pro

Unit of measurement


Reference interval

< 3 mg/L 

When rhabdomyolysis is suspected, the risk of acute kidney injury (AKI) increases when myoglobin is detectable in urine, especially in the presence of aciduria and hypovolemia.  A cut-off for AKI is not well defined but levels above 20 mg/l correlate with a significantly increased risk for AKI. Serum myoglobin seems to be a better marker for predicting AKI in the setting of rhabdomyolysis.

Uncertainty of measurement


Diagnostic Use Or Instructions

The test may help to predict the risk of acute kidney injury but is only one factor.

CK may be a better predictor of risk of acute kidney injury.

Minimum Volume

0.1 mL

Electronic Information

Registration Code


HL7 mapping code