Table 1. Laboratory tests of the patient at admission

Variable At admission Reference value
Hematochemical
 Hemoglobin 112 G/L 120 – 170
 Erythrocytes 3.54 T/L 3.8 – 5.5
 Leukocytes 16.49 G/L 4 – 11
 Platelet count 10 G/L 200 - 400
 PT 19.2 seconds 11 – 15
 INR 1.45 0.9 – 1.2
 aPTT 33.5 seconds 26 – 37
 Fibrinogen 2.58 G/L 2 – 4
 D-Dimer 15167 ng/mL 0 – 500
 Direct Coombs test Positive ++
 Indirect Coombs test Negative
 AST 238 U/L 5 – 49
 ALT 207 U/L 9 – 48
 Total Bilirubin 2 mg/dL 0.2 - 1.0
 Direct Bilirubin 1.04 mg/dL 0.0 - 0.2
 LDH 518 U/L 120 - 246
 Albumin 2.6 g/dL 3.5 - 5.5
 Protein 5.3 g/dL 6 - 8
 Procalcitonin 0.45 ng/mL < 0.5
 Lactate 3.28 mmol/L 0.5 - 2.2
 Creatinine 0.74 mg/dL 0.7 - 1.5
 Troponin I 0.082 ng/dL < 0.2
 fT4 9.74 pg/mL 8 - 20
 TSH 0.54 mlU/L 0.4 - 5
 C3 54.6 mg/dL 54
 C4 4.6 mg/dL 10 - 40
Urine
 PH 6.0 5.0 – 8.0
 Protein Negative Negative
 Ketone Negative Negative
 Blood 200 RBC/uL Negative
 Leukocyte Negative Negative
 Nitrite Negative Negative
 24-hour proteins < 0.08 g/dL < 0.08
Autoimmunity
 ANA Positive Negative
 Anti-ds DNA 74.4 IU/mL < 25
 Anti-Sm 0.8 U/mL Negative < 12
 Anti-CCP 0.7 IU/mL < 5
 Rheumatoid factor 3.8 IU/mL < 20
 Lupus Anticoagulant-Screen 61.9 seconds 31.0 – 44.0
 Lupus Anticoagulant Screen Ratio 1.9 R 0.9 – 1.1
 Lupus Anticoagulant Confirm 37.2 seconds 30.0 – 38.0
 Lupus Anticoagulant Confirm 1.18 0.9 – 1.1
 Lupus Anticoagulant 1.61 R < 1.2
 Anti-Cardiolipin IgM 1.3 U/mL ≤ 20
 Anti-Cardiolipin IgG 10.6 U/mL ≤ 20
 Anti-Beta 2 Glycoprotein-I IgM < 1.1 U/mL ≤ 20
 Anti-Beta 2 Glycoprotein-I IgG 57.2 U/mL ≤ 20