1045. Antistreptolysin-O (ASL-O)
Description
Anti-streptolysin-O is a substance synthesized by group A streptococcus (bacteria). Anti-streptolysin-O, when a person is infected with streptococcus, acts as an antigen to which the immune system produces antibodies.
High levels of this indicator indicate sensitization (increased sensitivity) of the body to the antigen and indicate the risk of developing rheumatic complications.
This analysis in combination with a rheumatoid factor should be taken in case of suspecting the development of rheumatic complications.
When and who needs the test?
- confirmation of exposure to streptococcal streptolysin;
- monitoring the dynamics of the course of streptococcal infection in rheumatism.
Biological material
- Venous blood
Preparing for a blood test
In order to exclude factors that may affect the test results, we recommend to follow the preparation rules:
- an important condition for laboratory tests is to take blood on an empty stomach.
- 6-12 hours before the test, you should avoid eating, drinking alcohol, smoking, and limit physical activity. Drinking...
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