Table 1. Applications for selected biomarkers^*.

Test	IBD vs. Other Disease	UC vs. CD	Risk of Complications	Active Disease vs. Remission	Assess Mucosal Healing	Predict Relapse	Predict Response to Therapy	Therapeutic Adjustment
Calprotectin	+			+	+	+	+
Lactoferrin	+			+	+	+	+
S100A12	+			+	+	+	+
CRP	+			+	+	+	+
ESR	+			+		+
Serologies	+	+	+				+
6MP metabolite levels						+	+	+
Anti-TNF drug levels						+	+	+
Antibodies against biologic therapies						+	+	+

^*The table includes both confirmed and theoretical roles for these biomarkers.