El presente estudio de pruebas diagnósticas, tiene como finalidad determinar si el Índice neutrófilo / linfocito es factor predictor de severidad en pacientes con diagnóstico de COVID – 19, atendidos en el Servicio de Emergencia del Hospital Víctor Lazarte Echegaray, Trujillo, durante el periodo junio 2020 – junio 2021. Para procesar la información se llenará el registro de datos en la ficha de recolección, a partir de la cual se procesarán usando el paquete estadístico SPSS-26.0. El tamaño muestral obtenido es de 1182 pacientes. En el análisis estadístico se determinará ““C““ donde C es el punto de corte a determinar (en el rango de 3 a 20), y el área bajo la curva ROC del Índice neutrófilo/linfocito; para obtener la prevalencia (P), sensibilidad (S), especificad (E), valor predictivo positivo (VPP), valor predictivo negativo (VPN), Índice de validez, razó...

Introduction: Acute lymphoblastic leukemia (ALL) of B (1,2) cells, is the most common subtype of ALL in children. ALL that presents as hypereosinophilia in peripheral (3) blood, is very rare and the incidence is <1%. Case Report: In this case, is presented a girl, 25 year old girl, initially diagnosed as community acquired pneumonia and leukemoid reaction with hypereosinophilia. Wich subsequently re-enters with respiratory distress, also finding double moderate mitral injury, moderate tricuspid insufficiency, mild pulmonary hypertension and mild pericardium effusion; finally, a definitive diagnosis of acute lymphoblastic leukemia B with the help of auxiliary examinations.

Introduction: Acute lymphoblastic leukemia (ALL) of B cells, is the most common subtype of ALL in children.(1,2) ALL that presents as hypereosinophilia in peripheral blood, is very rare and the incidence is <1%.(3) Case Report: In this case, is presented a girl, 25 year old girl, initially diagnosed as community acquired pneumonia and leukemoid reaction with hypereosinophilia. Wich subsequently re-enters with respiratory distress, also finding double moderate mitral injury, moderate tricuspid insufficiency, mild pulmonary hypertension and mild pericardium effusion; finally, a definitive diagnosis of acute lymphoblastic leukemia B with the help of auxiliary examinations.