Spectrum of disease:
COVID‐19:
mild: mild clinical manifestations, no pneumonia; moderate: respiratory symptoms, mild pneumonia, severe (37): pneumonia, ARDS with RR >30 times/min, oxygen saturation <93%; critical (3): pneumonia, shock, respiratory failure, and failures in other organs, nearly all patients: GGO
K+:
severe hypokalemia: 39 (higher body temperature, higher heart rate and RR, higher prevalence of dyspnea or tachypnea (p < .05)), hypokalemia 69, normokalemia patients 67.
Correlations: severity of hypokalemia with body temperature, CK, CK‐MB, LDH, and CRP (p < .01), 93% of severe/critically ill patients showed hypokalemia