Figure 1.

Schematic of survey content. The case directed to participating critical care specialists began with the second presentation. In contrast, rheumatologists were presented with only the initial patient presentation and subsequent laboratory findings. Where indicated, unique laboratory values and/or clinical parameters were incorporated into the cases presented to participating rheumatologists and critical care specialists.

Abbreviations: aPTT, activated partial thromboplastin time; BP, blood pressure; CBC, complete blood count; ED, emergency department; ENT, ear, nose, throat specialty; HR, heart rate; PT, prothrombin time.