Systemic Lupus Erythematosus (SLE) with Acute Nephritis, Antineutrophil Cytoplasmic Antibody- (ANCA-) Associated Vasculitis, and Thrombotic Thrombocytopenic Purpura (TTP): A Rare Case Report with Literature Review

Table 2

Laboratory test results after 24 hours.

Variable	Result	Reference range, adults
Antineutrophilic cytoplasmic antibody (ANCA)	p-ANCA 1 : 640	<1 : 20
ADAMTS13	<10%	>50%
Antistreptolysin O	399 IU/mL	0–199 IU/mL
Antiphospholipid panel	Anticardiolipin IgA, IgG negative; Beta-2 glycoprotein 1 IgM, IgG negative; Anticardiolipin IgM 13.5 MPL : intermediate	<12.5 MPL negative; 12.5–20 MPL intermediate; >20 MPL low-medium to high positive
Paroxysmal nocturnal hemoglobinuria flow cytometry	Negative	Negative
HIV, EBV IgM, dengue IgG and IgM, and hepatitis A, B, and C virus	Negative	Negative
Blood cultures	Negative	Negative

Ig, immunoglobulin; HIV, human immunodeficiency virus; EBV, Epstein–Barr Virus.