Antistreptolysin O (ASO) Strep Blood Titer Test
Antistreptolysin O (ASO) Strep Blood Titer Test (Labcorp)
This test measures the level of Antistreptolysin O (ASO) Antibodies in the blood. ASO is one of several types of antibodies produced by the immune system in response to infection with A Streptococcus Bacteria. Streptococcus A causes a number of infections including Strep Throat. Most strep infections can be successfully treated with antibiotics but when left untreated they can cause serious health issues such as kidney disease, heart damage, hypertension, and rheumatic fever. Some strep infections do not show any symptoms initially or show mild symptoms which resolve on their own. ASO antibody testing can help a person and their doctor determine if they have an unresolved infection and treat it before more serious complications arise.
ASO Antibody testing is typically ordered when a person has symptoms which may be related to a condition caused by a previous strep infection, especially if they have recently had a sore throat or skin infection. These symptoms can include fever, joint swelling or pain, rash, shortness of breath, heart palpitations, fatigue, blood in the urine, uncontrolled jerky movements, and high blood pressure.
Turnaround for this test is typically 1-2 business days.
Where can I find an Antistreptolysin O (ASO) Strep test near me?
Check our lab finder to locate a collection site in your area.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
ASO antibody levels typically peak at 3-8 weeks after a strep infection.