2488. ANA. SmDP-S, IgG antibodies
Description
Anti-Sm (Smith) – antibodies to U1-, U2-, U4-ribonucleoproteins – specific for systemic lupus erythematosus (SLE). They rarely occur in other systemic connective tissue diseases and are one of the diagnostic criteria for SLE. At the same time, however, the concentration of anti-Sm does not correlate with the activity of systemic lupus erythematosus.
When and who needs the test?
- recommended for the diagnosis of systemic connective tissue diseases;
- for differential diagnosis of some autoimmune diseases;
- for monitoring the course and assessing the progression of rheumatic diseases.
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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