|Values are valid only on day of printing.|
Test Performed by: RDL Reference Laboratory, Inc.
10755 Venice Boulevard
Los Angeles, CA 90034
Signal Recognition Particle (SRP) is a myositis specific autoantibody which is seen in 5-10% of adult and juvenile myositis. Symptoms often are acute onset of severe polymyositis with frequent myalgias, severe weakness and very high creatine kinase levels. Some adults experience cardiac involvement and palpitations. There is a poor response to therapy.