Table 4. Laboratory and echocardiographic findings.

Laboratory features associated with severe COVID-19 infection included 71% were high ferritin level, 66.2% were high LDH, 61% were high CRP level, 53.9% were high D-dimer, 39.4% were high CK level, 35.7% were high myoglobin level, 22.2% were high procalcitonin, 15.7% were rhabdomyolysis and 6.3% were high lactic acid. 7.7% hospitalized patients were performed Echocardiography showed 3.4% were mild low EF, 1.7% were severe low EF and 0.5% were moderate low EF.

Laboratory features	Frequency (n)	Percentage (%)
Serum ferritin >500mcg/L	295	71%
Ferritin >500mcg/L in rhabdomyolysis (65)	58	89.2%
Ferritin >500mcg/L in acute myocardial injury (99)	86	86.8%
C-reactive protein levels (>100mg/l)	253	61%
C-reactive protein levels (>100mg/l) in rhabdomyolysis (65)	57	87.8%
C-reactive protein levels (>100mg/l) in acute myocardial injury (99)	86	86.8%
D-Dimer >1000 ng/ml	223	53.9%
D-Dimer >1000 ng/ml in rhabdomyolysis (65)	51	78.5%
D-Dimer >1000 ng/ml in acute myocardial injury (99)	74	74.7%
IL6>70 pg/ml	153	37%
IL6>70 pg/ml in Rhabdomyolysis (65)	42	64.6%
IL6>70 pg/ml in acute myocardial injury (99)	67	67.7%
Acute myocardial injury in patient high inflammatory marker (103) (ferritin, CRP, D dimer, IL-6)	53	51.45%
Rhabdomyolysis in patient high inflammatory markers (103) (ferritin, CRP, D dimer, IL-6)	29	28.15%
LDH >245 units/L	274	66.2%
Serum CK>300u/L	163	39.4%
Serum myoglobin >72 ng/dl	148	35.7%
Acute kidney injury (AKI) (urea>8mmol/L, creatinine>106ml/min)	152	36.7%
Acute kidney injury in rhabdomyolysis (65)	41	63.07%
ALT or AST >200 U/L (Acute liver injury)	114	27.5%
Troponin-T hs (male>30, female>20ng/l) Acute myocardial injury	99	23.9%
Procalcitonin (> 2ng/ml)	90	22.2
Serum CK>1000 U/L (Rhabdomyolysis)	65	15.7%
Pro-BNP (>1800pg/ml) AHF	47	11.4
Lactic acid >4mml/l	26	6.3
Echocardiography
Mild low ejection fraction (51-41%)	32	7.7
Moderate low ejection fraction (40-30%)	11	2.7
Severe low ejection fraction (<30%)	7	1.7