Test Directory

Test Code
SDNAB
Test Name
Anti-DNase B Strep Antibodies
CPT Codes
86215
Expected Turnaround Time
3 - 5 days
Clinical Utility

Provides evidence of an existing or past streptococcal infection

Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Desired Specimen Volume: 1 mL

Collection Instructions
  1. Collect specimen in gold top, serum separator tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 0.5 mL of serum to a clear aliquot tube.
Transport Instructions

Transport to the laboratory refrigerated. 

Stability Requirements

Room Temperature

9 days

Refrigerated

14 days

Frozen

14 days

Freeze/Thaw Cycles

 Stable x3

Causes for Rejection
  • Gross lipemia that cannot be clarified by ultracentrifugation
  • Heat-inactivated samples
  • Severe hemolysis
Methodology
Immunonephelometry
Reference Intervals

• <1 year: not established

• 1 to 6 years: <78 U/mL

• 7 to 17 years: ≤170 U/mL

• 18 years and older: ≤120 U/mL

Alternate Names
  • ADB
  • Anti-DNase B Antibodies
  • DNase-B
  • DNase-B Antibodies
  • Streptococcal Antibodies
  • Streptodornase
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, 5 times per week