Laboratory features

Frequency

Percentage (%)

Serum CK > 300 u/L

163

39.4

Serum myoglobin > 72 ng/dl

148

35.7

Serum CK > 1000 U/L causing Rhabdomyolysis

65

15.7

Serum Ferritin > 500 mcg/L

295

71

LDH > 245 units/L

274

66.2

C-reactive protein levels

253

61

D-Dimer > 1000 ng/ml

223

53.9

IL6 > 70 pg/ml

153

37

Procalcitonin > 2 ng/ml

90

22.2

Lactic acid > 4 mml/l

26

6.3

Echocardiography

Mildly low Ejection Fraction

32

7.7

Severely low Ejection Fraction

7

1.7

Moderately low Ejection Fraction

11

2.7

Nerve conduction/Electromyographic studies

CINM

7

1.7

CIM

3

0.7