A 42-year-old member asked:
whats a normal level for sm antibody?
1 doctor answer • 4 doctors weighed in
Dr. John Goldmananswered
Rheumatology 55 years experience
Depends on whose sm: Different labs have different ranges for their positive test. They usually set the range for detection at a certain level. Below that level they have many people without lupus that would have a + test. Above that level is what they call a + test. But not all labs are created equal - so each has there own level determined by their scientific investigations.
5.9k viewsReviewed >2 years ago
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:
Similar questions
A 33-year-old member asked:
What is a normal level for sm antibody?
1 doctor answer • 2 doctors weighed in
Dr. Gurmukh Singhanswered
Pathology 49 years experience
Negative: Normal people do not have antibodies to sm antigen. It is one of the markers for lupus.
5.7k viewsReviewed >2 years ago
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:
Last updated Sep 16, 2012
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$30 per visit with
membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.