Demonstration of acute or recent streptococcal infection.
age <5 yr: < or = 250 U/Ml; age 5-17 yr: < or = 375 U/Ml; age >=18 yr: < or = 300 U/Ml.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
False-high titers may be obtained with sera that are contaminated by certain bacterial organisms during shipment or storage and in patients with liver disease where the presence of high lipoprotein concentrations in the serum may mimic antibody activity.
Days Test Performed
Monday - Saturday
2 - 4 days
Soft Order Code
DNase B Antibody
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Offsite Collection Instructions
Collect specimen in red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.
1 mL serum
0.5 mL serum
Test sent to Mayo Medical Laboratories.