Think about checking Ig levels prior to Rituximab administration. Low IgM was most common after RTX in RA. The following are risk factors for hypogammaglobulinemia:
🧪 Older age
🧪 Use of steroids
🧪 Repeated doses of RTX
🧪 Low Ig at baseline
🧪 Older age
🧪 Use of steroids
🧪 Repeated doses of RTX
🧪 Low Ig at baseline
