Measles Antibody (IgM) : 34256

Test Code
MEASMQ or 34256

Alias/See Also
Rubeola, IgM

CPT Codes
86765

Instructions
Serum separator tube or plain red.

Transport Container
Centrifuge the serum separator tube and transport. If plain red, centrifuge and aliquot 1 mL serum (Min: 0.2 mL) into a standard transport tube.

Transport Temperature
Refrigerated.

Specimen Stability
Ambient: 7 days; Refrigerated: 14 days; Frozen: 30 days

Methodology
Immunofluorescence Assay (IFA)

Setup Schedule
Tuesday - Saturday

Report Available
1-3 days (From receipt at performing laboratory)

Limitations
The traditional serologic diagnosis of measles requires a significant rise in antibody titer between acute and convalescent sera. However, detection of IgM antibody in a single specimen may indicate acute disease. Correct interpretation of serologic data depends upon the proper timing of specimen collection in relation to rash onset. This timing is particularly important for interpreting negative IgM results, since IgM antibody peaks approximately 10 days after rash onset and is usually undetectable 30 days after rash onset.

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
 

Reference Range
less than 1:20                      Antibody not detected
greater or equal to 1:20         Antibody detected


Performing Laboratory
Quest Diagnostics



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.