Table 2 Additional laboratory investigation findings of the patient

Blood culture and sensitivity

No growth

Dengue NS1 antigen

Non-reactive

Dengue IgM

Negative

Dengue IgG

Negative

Mycoplasma pneumoniae IgM

Negative

Mycoplasma pneumoniae IgG

1/80

Epstein–Barr virus IgM

Negative

Epstein–Barr virus IgG

Positive

Parvovirus IgM

Negative

Parvovirus IgG

Negative

RPR/VDRL

Non-reactive

HBsAg

Non-reactive

Anti-HCV

Non-reactive

HIV antigen and antibody

Non-reactive

Complement 3 (mg/dL) (NR, 39–180)

109

136

Complement 4 (mg/dL) (NR, 10–40)

18.4

18.7

Anti-nuclear antibody (ELISA)

Positive

Positive

Anti-nuclear antibody (IF)

Positive (1/640)

Pattern: speckled

Positive (1/640)

Pattern: speckled

Anti-double-stranded DNA (ELISA)

Negative

Borderline

Immunoglobulin A (mg/dL) (NR, 70–400)

187

Immunoglobulin M (mg/dL) (NR, 40–230)

87.2

Immunoglobulin G (mg/dL) (NR, 700–1600)

1600

Direct Coombs test

Negative

Indirect Coombs test

Negative

Erythrocyte sedimentation rate (mm/hour)

115

Prothrombin time (seconds) (NR, 11.9–14.0)

14.2

13.7

Thrombin time (seconds) (NR, 12–21)

16.7

16.1

Fibrinogen (g/L) (NR, 1.36–4.65)

2.58

2.60

PTT LA

48.5

42.4

DRVV screen (seconds) (NR, 28–46.3)

41.7

37.9

DRVV screen ratio

1.04

0.92

Anti-cardiolipin IgM (U/mL) (NR, 0–20)

3.9

Anti-cardiolipin IgG (U/mL) (NR, 0–20)

9.6

Anti-beta2 glycoprotein 1 IgM (U/mL) (NR, 0–20)

2.7

1.1

Anti-beta2 glycoprotein 1 IgG (U/mL) (NR, 0–20)

43.5

12.3

 SmD

Negative

 RNP-70 K

Negative

 RNP-A

Negative

 RNP-C

Negative

 SSA(Ro52)

Negative

 SSA(Ro60)

Negative

 SSB(La)

Negative

 Cenp-B

Negative

 Topo-1(Scl-70)

Negative

 Ribosomal P

Negative

 Histone

Negative

 SmB

Negative

 Jo-1(HRS)

Negative