At the same time, if the patient develops respiratory failure, shock, CK ≥ 1000 U/L, CK-MB ≥ 100 U/L, SCr ≥ 100 mmol/L, BUN ≥ 7.5 mmol/L, or CRP ≥ 8 mg/L, close attention should also be given to changes in the patient's condition. Here, CRP is linked to respiratory failure.