CRP and COVID-19: In a study of 5700 patients with COVID-19, median CRP levels were elevated at admission, and a relatively high percentage of patients had QTc of 500 milliseconds or greater.31 Another study showed all-cause COVID-19 death was associated with prolonged QTc, which was directly associated with elevated immune-inflammatory markers.32 Furthermore, there have been reports of arrhythmic storm in patients with COVID-19 in the setting of massive inflammation.33,34,35