CRP and myocarditis: In exploratory analysis of laboratory findings at the time of suspecting COVID-19 myocarditis, mean fold elevation in troponin above normal limit (100.84), CRP (80 mg/L), lactate (2.79 mmol/L), D-dimer (3,775 ng/mL), ferritin (8,355 ng/mL), and procalcitonin (23 ng/mL) were all markedly elevated.