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

Table 3

Serological and specific laboratory findings.

Other Serologies and Tests (Normal Values)	Patient
TSH (0.358–3.7 UIU/mL)	1.190
Rheumatoid Factor (<15 IU/mL)	<10
Antinuclear Antibody Screen (Negative)	Negative
Anti-Ds DNA (0–99 Unit/mL)	4
Anti-neutrophil Cytoplasm Antibodies (Neg)	Negative
Anti-Smith antibodies (0–99 Unit/mL)	7
Anti-Ribonuclear Protein Antibodies (0–99 Unit/mL)	28
Anti-Sclerosis Antibodies (0–99 Unit/mL)	14
SS-A(RO) Precipitin (0–99 Unit/mL)	8
SS-B(LA) Precipitin (0–99 Unit/mL)	9
CCP Antibody IGG (0–5 Unit/mL)	0.5
Epstein-Barr Virus IGG Antibody (Negative)	Positive
Epstein-Barr Virus IGM Antibody (Negative)	Negative
Parvovirus by PCR (Negative)	Negative
BK Virus by PCR (Negative)	Negative
Direct Coombs Test (Negative)	Negative
HIV 1/2 Antibody (Negative)	Negative
Creatine Kinase (35–232 Unit/L)	119
Uric Acid (3.5–7.2 mg/dL)	5
Total Protein (6.4–8.2 g/dL)	6.7
Albumin (3.4–5.8 g/dL)	2.2
AST (10–37 Unit/L)	27
ALT (12–78 Unit/L)	71
Alkaline Phosphatase (50–136 Unit/L)	59
Total Bilirubin (0.2–1 mg/dL)	0.3

TSH: thyroid stimulating hormone; CCP antibody IGG: cyclic citrullinated peptide antibody IGG; PCR: polymerase chain reaction; AST: aspartate aminotransferase; ALT: alanine aminotransferase.