Antitumor Necrosis Factor-Alpha (TNF-α) Infliximab-Induced Pleural Effusion and Pericarditis in Crohn’s Disease

Table 1

Laboratory results of our patient upon presentation and diagnosis.

Parameter	Result	Normal range for age
White blood cells	13.2	5–10 k/uL
C-reactive protein (CRP)	8.2	0.0–1.0 mg/L
Rheumatoid factor	12.5	0–11.9 IU/mL
Calprotectin	480	<50 mcg/gm
Antinuclear antibodies (ANAs)	Negative	Negative
Antinuclear antibodies indirect fluorescent antibody (ANA IFA)	Positive	Negative
Antihistone antibodies	1.7	0.0–0.9