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.
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.
2 - 4 days
- DNase B Antibody
- Anti-DNase B
Test sent to Mayo Medical Laboratories.