DNAse-B Antibody
Test Mnemonic
DASEAB
CPT Codes
- 86215 - QTY (1)
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Refrigerated | Separate serum from cells ASAP or within 2 hours of collection and transfer to standard aliquot tube |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.4 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | After separation from cells: 48 hours |
| Refrigerated | After separation from cells: 2 weeks |
| Frozen | After separation from cells: 1 year |
Days Performed
Sun, Wed, Fri
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Quantitative Nephelometry |
Reference Range
| DNAse B Ab | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 6 Years | Normal | < 250 | U/mL | 7 Years | 17 Years | Normal | < 310 | U/mL | 18 Years | 99 Years | Normal | < 260 | U/mL |
Special Info
Plasma or severely hemolyzed specimens are unacceptable. This test is New York DOH approved.
Clinical Info
Confirm current or recent infection with group A Streptococcus in patients suspected of having a nonsuppurative complication such as acute glomerulonephritis (AGN) or acute rheumatic fever (ARF). DNase-B Antibody and Anti-Streptolysin O (ASO) are generally ordered concurrently. Preferred test for rheumatic chorea since it remains elevated longer.