Anti-Streptolysin O
Order Code:
ASO
Test Summary
ASO is a sensitive test for recent streptococcal infection. A rise in ASO begins about one week after infection and peaks two to four weeks later. ASO levels do not rise with cutaneous infections. In the absence of complications or reinfection, the ASO level will fall to pre infection levels within 6 to 12 months.
Aliases
- Antistreptolysin O
- ASO
- ASO Quant
- ASO Titer
- Streptolysin-O
- Streptolysin-O-Titer
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
1 mL
Instructions
Barrier tubes (serum separator tubes) are preferred. If non-barrier tubes are utilized, the serum must be removed immediately after centrifuging and placed in a screw-cap transfer tube. Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered. Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Patient Preparation
N/A
Storage
Original tube preferred, may be sent in a screw-top transfer tube.
Transport Temperature
Room Temperature or Refrigerated
Specimen Stability
- Room Temperature = 2 days
- Refrigerated = 8 days
- Frozen = 6 months
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Order Code
ASO
EPIC (Premier) Code
LAB052
Includes
N/A
CPT Code
- 86060
Billing Code
- 300503
CPT Statement
Methodology
Immunoassay (IA)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439
2308 Sandridge Drive
Moraine OH, 45439
Department
Chemistry
Reference Range
<200 IU/mL
Setup Schedule / Expected Turnaround Time
24/7; Report available: Within 1 day of set up
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
1 mL
Instructions
Barrier tubes (serum separator tubes) are preferred. If non-barrier tubes are utilized, the serum must be removed immediately after centrifuging and placed in a screw-cap transfer tube. Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered. Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Patient Preparation
N/A
Storage
Original tube preferred, may be sent in a screw-top transfer tube.
Transport Temperature
Room Temperature or Refrigerated
Specimen Stability
- Room Temperature = 2 days
- Refrigerated = 8 days
- Frozen = 6 months
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Result Information
Methodology
Immunoassay (IA)
Testing Laboratory
N/A
Reference Range
<200 IU/mL
Setup Schedule / Expected Turnaround Time
24/7; Report available: Within 1 day of set up