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Test Code DNSB Dnase B Antibody   

Important Note

Confirm current or recent infection with group A Streptococcus in patients suspected of having a nonsuppurative complication such as acute glomerulonephritis or acute rheumatic fever.Dnase-B antibody and Streptolysin O Antibody (ASO) are generally ordered concurrently.  Preferred test for rheumatic chorea since it remains elevated longer.
 

Additional Codes

50220

Specimen Type

Blood

Preferred Collection Container

SST

Collection Instructions

Separate serum from cells ASAP or within 2 hours of collection.
 

Collection Volume

2.0 mL

Minimum Collection Volume

0.8 mL

Testing Volume

0.4 mL

Rejection Criteria

Plasma or severely hemolyzed specimens
 

Specimen Storage and Stability

Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
 

Day(s) and Time(s) Performed

Sunday through Saturday

Test Alias

50220; DNA Streptococcal Antibodies; Dnase-B, Streptococcal Antibodies, 
 

CPT Coding

86215

EPIC Code

LAB1723

Methodology

Quantitative Nephelometry
 

Acceptable Collection Container

SST

Transport

Refrigerated

Turn Around Time

2-5 days

Lab Department

Referred Testing

LOINC

5133-4