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Myoglobin, Urine (NY)
Test Code901534
CPT Codes
83874
Preferred Specimen
Minimum: 4 mL urine submitted in a Myoglobin Transport Tube
Instructions
Add exactly 4 mL random urine to a Myoglobin Transport tube within 1 hour of collection. Freeze and ship frozen. (Transport tube# 170764 available through Client Supply).
Exactly 4 mL random urine in the Myoglobin Transport tube is required to achieve the required pH >8.0; more than 4 mL of urine will lower the pH outside the acceptable range.
Exactly 4 mL random urine in the Myoglobin Transport tube is required to achieve the required pH >8.0; more than 4 mL of urine will lower the pH outside the acceptable range.
Transport Temperature
Frozen
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 72 hours
Frozen: 72 hours
Refrigerated: 72 hours
Frozen: 72 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received in a non-Myoglobin Transport tube • Specimen received past stability; pH <8.0 • More than 4 mL urine in Myoglobin Transport tube • Received room temperature • Timed urine
Methodology
Nephelometry
Setup Schedule
Set up: Mon-Sat; Report available: 2 days
Reference Range
<28 mcg/L
Clinical Significance
The breakdown of skeletal muscle (rhabdomyolysis) releases myoglobin. Very high concentrations of myoglobin may increase the risk of acute renal failure.
Performing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia, CA 91355-5386
