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. 2019 Nov 8;59(5):721–728. doi: 10.2169/internalmedicine.3727-19

Table 1.

Laboratory Data on Admission and at Time of MAS Development.

On admission Complicated by MAS Normal range
Urinalysis
Protein - -
Occult blood - -
Blood count
White blood cells (/μL) 11,970 20,240 3,300-8,800
Neutrophil (%) 88.2 97.0 42.0-74.0
Hb (g/dL) 9.6 9.3 13.5-17.0
Plt (/μL) 39.0 28.5 13.0-35.0
ESR (mm/hr) 140 56
Serum chemistry
BUN (mg/dL) 13.3 21.9 8-22
Cr (mg/dL) 0.75 0.73 0.60-1.00
Na (mEq/L) 134 132 135-149
K (mEq/L) 4.3 5.1 3.5-4.9
Cl (mEq/L) 98 98 96-108
AST (IU/L) 41 1,989 13-33
ALT (IU/L) 22 821 8-42
LDH (IU/L) 357 2,643 119-229
TP (g/dL) 7.4 6.0 6.7-8.3
Alb (g/dL) 2.5 2.4 4.0-5.0
TG (mg/dL) 78 139 30-150
Ferritin (ng/mL) 8,412 34,160 6.9-323
FDP-DD (μg/mL) 6.2 33.8 <1.0
Immunological findings
CRP (mg/dL) 15.7 2.9 0.0-0.3
IgG (mg/dL) 1,775 870-1,700
IgA (mg/dL) 283 110-410
IgM (mg/dL) 89.5 33-190
C3 (mg/dL) 184.7 65-135
C4 (mg/dL) 41.7 13-35
Anti-nuclear antibody ×40 -
RF (IU/mL) 2.0 <20
MPO-ANCA - -
PR3-ANCA - -
sIL-2R (U/mL) 1,490 2,870 220-530
Cytokine
IL-18 (pg/mL) 33,500 210,000 <500
IL-6 (pg/mL) 42 18 <5
neopterin (nmol/L) 21.8 113 <5
sTNF-R I (pg/mL) 4,240 7,000 484-1,407
sTNF-R II (pg/mL) 6,900 46,500 892-2,262
sTNF-R II/I 1.6 6.6

MAS: macrophage activation syndrome