General Information About the Test
Test Process and Preparation
An elevated ASO level proves that the individual has recently had a streptococcal infection (e.g., tonsillitis or strep throat). However, it does not solely indicate an active disease, but rather that the body has previously produced antibodies against that microbe.
Because strep infections and the subsequent development of rheumatic fever are most commonly seen in school-aged children, it is typically requested in pediatrics; however, it can also be administered to symptomatic adults.
Fasting is generally not a requirement for the test. It can be evaluated by drawing blood from the arm at any time of the day.
The information on this page is for informational purposes only. The results of medical tests must be evaluated by specialist physicians.
