If you have elevated levels of ASO antibodies, it means that you have probably had a recent strep infection . If your levels are taken again later and are higher, it also means you’ve probably had a recent strep infection.
What is considered high ASO level?
Generally, an ASO test value below 200 is considered normal. In children under the age of 5, the test value should be less than 100 . Results will vary by laboratory. If your results show that you have an elevated ASO value, you may have a post-streptococcal complication.
What causes high ASO levels?
An elevated titer of antibody (positive ASO) or an ASO titer that is rising means that it is likely that the person tested has had a recent strep infection . ASO titers that are initially high and then decline suggest that an infection has occurred and may be resolving.
How do you treat ASO positive?
Treatments include: Antibiotics . Your child’s doctor will prescribe penicillin or another antibiotic to eliminate remaining strep bacteria. After your child has completed the full antibiotic treatment, your doctor will begin another course of antibiotics to prevent recurrence of rheumatic fever.
What is ASO level in blood?
Antistreptolysin O (ASO) titer is a blood test to measure antibodies against streptolysin O , a substance produced by group A streptococcus bacteria. Antibodies are proteins our bodies produce when they detect harmful substances, such as bacteria.
Can high ASO titre cause heart disease?
The main function of streptolysin O is to cause hemolysis (the breaking open of red blood cells)—in particular, beta-hemolysis. Increased levels of ASO titre in the blood could cause damage to the heart and joints .
What is a normal ASO level?
The ASO ULN serum level for total subjects was 276.2 IU/ ml with a median of 195 IU/ml . A slightly higher ASO ULN serum level was observed for females (258.5 IU/ml) with a median of 195 IU/ml, while a lower ASO ULN serum level was observed for males (252.5 IU/ml) with a median of 170 IU/ml.
What factors may cause false positive ASO result?
False-positive ASO titers can be caused by increased levels of serum β-lipoprotein produced in liver disease and by contamination of the serum with Bacillus cereus and Pseudomonas . ASO titers are elevated in 85 percent of patients with rheumatic fever but may not be elevated in cases involving skin or renal sequelae.
What is Aso quantitative?
This test helps to diagnose and monitor diseases of the The Anti Streptolysin-O (ASO) Quantitative test helps to detect if a person has recently been infected with streptococcal infection. It also helps to diagnose complications that result from streptococcus infections like rheumatic fever, or kidney disease.
What is strep infection in blood?
Streptococcal toxic shock syndrome (STSS) is a rare, but serious bacterial infection . STSS can develop very quickly into low blood pressure, multiple organ failure, and even death. Good wound care, hand hygiene, and cough etiquette are important for preventing this serious and often deadly disease.
What antibiotics treat rheumatic fever?
Rheumatic fever is preventable by treating strep throat with antibiotics, usually penicillin . If a patient is allergic to penicillin, other antibiotics such as erythromycin (Eryc, Ery-Tab, E.E.S, Eryped, PCE) or clindamycin (Cleocin) can be used.
Do antibiotics prevent rheumatic fever?
Primary Prevention of Rheumatic Fever. Group A streptococcus (GAS) infections of the pharynx are the precipitating cause of rheumatic fever. Proper diagnosis and adequate antibiotic treatment of GAS infections can prevent acute rheumatic fever in most cases .
What is a strep throat infection?
Overview. Strep throat is a bacterial infection that can make your throat feel sore and scratchy. Strep throat accounts for only a small portion of sore throats. If untreated, strep throat can cause complications, such as kidney inflammation or rheumatic fever.
What is the principle of ASO test?
Principle. The detection of anti-streptolysin O antibodies is based upon the neutralization of the streptolysin O hemolytic activity by antibodies present in the test serum . The antigen-antibody immunological complexes that are formed are revealed by the addition of a suspension of sheep erythrocytes.
How is strep in the blood treated?
Treatment for the infections include appropriate antibiotics . Sepsis caused by group A strep should be treated urgently with both antibiotics and IV fluids. For people with necrotizing fasciitis, surgery may likely be needed to remove the affected tissue.
Can a blood test detect strep throat?
What is an ASO test and how is it used to detect a strep infection? Antistreptolysin O (ASO) is a blood test used to help diagnose a current or past infection with group A strep (Streptococcus pyogenes). It detects antibodies to streptolysin O, one of the many strep antigens.
