Application of blood routine in the diagnosis of infectious diseases

Abstract

In pediatrics, one of the most common diseases is infectious diseases, which is caused by pathogens invading the body and accompanied by local tissue damage or systemic inflammatory reactions.Children′s undeveloped immunity and the consequent rapid progress of the disease urge early diagnosis and timely treatment.However, there is no significant specificity for the clinical symptoms of various infectious diseases, especially in the early stage.Pathogen detection, as a diagnostic gold standard, is not beneficial for the early diagnosis due to the strict requirements for the test environment, long time consumption, low positive rate, and easy contamination.Compared to other methods, blood routine is the most basic and inexpensive test item in clinical practice with the advantage of simple operation and short time.It mainly detects the quality, quantity, and morphological changes in blood components, such as white blood cells, red blood cells, and platelets.It is a valuable test for early diagnosis, differential diagnosis, and evaluation of the severity as well as the treatment efficacy for infectious diseases.Therefore, blood routine test currently is the most preferred method for clinical diagnosis of infectious diseases in pediatrics. Key words: Infectious diseases; Blood routine; Pediatrics; Diagnosis; White blood cells