The EAACI/GA²LEN guideline updated the diagnostic algorithm: routine extensive allergy testing is NOT recommended for chronic spontaneous urticaria (CSU) lasting <6 weeks. Instead, the autologous serum skin test (ASST) is resurrected as a diagnostic tool for autoimmune urticaria.
This SOP is not a prison—it is a life raft. The top 20 diseases account for 78% of our outpatient volume. Getting them right, quickly and consistently, reduces patient harm, lowers costs, and restores trust. sop for diagnosis of top 20 common diseases updated