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A/G Ratio

Test Code
AGR


Includes
TP, Albumin, A:G Ratio


Preferred Specimen
1.0 mL plasma (0.5 mL minimum)


Transport Container
PST (light green top). Red top and SST also acceptable


Specimen Stability
Room temperature: 8 hours, Refrigerated: 72 hours, Frozen: 1 month


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed specimens are unacceptable.


Reference Range
1.1 - 2.0


Clinical Significance
The albumin/globulin ratio is the calculation of albumin compared to globulin level. A low A/G ratio may be due to overproduction of gamma-globulin (monoclonal/polyclonal gammopathy, multiple myeloma or autoimmune disease) or due to low albumin (as in cirrohosis or nephrotic syndrome). If the A/G ratio is high, then one should look for diseases with low gamma-globulin production such as agammaglobulinemia. Often serum electrophoresis can determine a more specific abnormality.




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.