“Steroid Flare” Following Intraarticular Injection of Corticosteroid

Number of hours between the injection and the onset of symptoms

Has the reaction been transient and self-limited?

Was the reaction associated with an increase in inflammatory cells in the synovial fluid?

Was hydrocortisone acetate the steroid injected?

Does a joint aspirate show a large amount of crystals within inflammatory cells?

Are bacteria seen in the synovial fluid or isolated on culture?

Does the joint aspirate show almost pure blood?

Allergic symptoms