Is Thymoglobulin or Rituximab the Cause of This Serum Sickness? A Case Report of Serum Sickness Dilemma and Literature Review

Table 2

Some of the serum sickness-specific laboratory findings before and after the treatment.

Test and Normal Range	At Presentation	After treatment	3 weeks Later
ESR (0–15 mm/hour)	105	NC	84
CRP (<0.3 mg/dL)	14.3	NC	<0.3
C3 (87–247 mg/dL)	74	NC	138
C4 (10–37 mg/dL)	7	NC	45
LDH (82–234 Unit/L)	244	NC	NC
Haptoglobulin (30–200 mg/dL)	422	NC	NC
BUN (3–21 mg/dL)	41	69	32
SCr (0.8–1.3 mg/dL)	1.8	2.8	1.7
Upr/Cr	6.1	2.4	2.0

NC: not checked; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; C3/C4: complements; LDH: lactate dehydrogenase; BUN: blood urea nitrogen; Scr: serum creatinine; Upr/Cr: urine protein to creatinine ratio.