To the Editor: We thank Dr. Gurmukh Singh for his response. We are not advocating screening for multiple myeloma using a serum-free light-chain assay, and we agree with Dr. Gurmukh Singh that no evidence exists for the efficacy of serum-free light-chain testing in asymptomatic individuals. However, we suggest that this might be a worthwhile diagnostic test for patients with unexplained back pain and other “red flag” signs or symptoms, in whom multiple myeloma is suspected.
Notes
To see this article online, please go to: http://jabfm.org/content/30/2/265.full.