A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Myoglobin, Urine

Test Code
MYOGU


Alias/See Also

LAB412



CPT Codes
<p>83874</p>

Preferred Specimen

Specimen Type: Urine

Collection Container/Type: Myoglobin transport tube

Submission Container/Tube: Myoglobin transport tube

Specimen Volume: 4 mL

Collection Instructions: 

  1. Add exactly 4 mL random urine to a Myoglobin Transport tube, within 1 hour of collection.
  2. Freeze and ship frozen. (Transport tube# U87 available through Quest Client Supply).

Additional Information:

  • Exactly 4 mL of urine in the Myoglobin Transport tube is required to achieve the required pH of >8.0; more than 4 mL of urine will lower the pH outside acceptable range.
  • Note: Myoglobin in urine is very unstable unless the pH is between 8.0 and 9.0


Minimum Volume

4 mL



Instructions
Add exactly 4 mL random urine to a Myoglobin Transport tube, within 1 hour of collection. Freeze and ship frozen. (Transport tube# 177447 available through Client Supply).

Exactly 4 mL of urine in the Myoglobin Transport tube is required to achieve the required pH of >8.0; more than 4 mL of urine will lower the pH outside acceptable range.

Note: Myoglobin in urine is very unstable unless the pH is between 8.0 and 9.0


Transport Temperature
Frozen


Specimen Stability

Room temperature: Unacceptable

Refrigerated: 72 hours

Frozen: 72 hours



Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Specimen received in a non-Myoglobin Transport tube • More than 4 mL urine in Myoglobin Transport tube • Specimen received room temperature • Specimen received past stability • pH <8.0 • Timed urine



Methodology

Nephelometry



Setup Schedule
Set up: Mon-Sat evening; Report available: 1-2 days


Report Available

1-2 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 14225 Newbrook Drive Chantilly, VA 20153


Last Updated: February 23, 2012


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.