White blood cell (WBC) + C-reactive protein (CRP) + serum amyloid A (SAA) "three new routine detection" has been proposed by many well-known pediatric experts based on the clinical value of SAA detection in the diagnosis of infant infection in recent years, It has been widely used and recognized. The results showed that the total positive rate of SAA in a variety of inflammatory diseases was 8.54% higher than that of CRP. Combined detection of SAA and CRP can more accurately diagnose the type of infection and monitor the course of infectious diseases
Detection range | sample size | Sample type | Test time | |
CRP | SAA | 5μl | Whole blood / serum / plasma | 3min |
0.5~200mg/L | 5~200mg/L |
SAA normal CRP was normal | SAA normal Elevated CRP | SAA increased CRP was normal | SAA increased Elevated CRP |
Consider non-infectious factors | The disease is improving | Consider virus infection | Consider bacterial infection |
According to the clinical symptoms, continue to treat or continue to monitor SAA and CRP until they return to normal | According to the clinical symptoms, SAA and CRP returned to normal | Antiviral therapy; SAA and CRP were monitored to return to normal or change the treatment plan | After antibiotic treatment, SAA and CRP were monitored to return to normal or change the treatment plan |
Laboratory, infection, fever clinic, pediatrics, cardiology, organ transplantation, etc