Why might having a sickle cell anemia crisis result in a reduced red blood cell count, an elevated white blood cell count, and a reduced hematocrit?

Acute blood trapping: Sickle cell crisis occurs because these patients red cell are not elastic, gets trapped in vessels, in spleen,liver, lungs,leading to loss from circulation, hence low red cells and hematocrit in CBC. Repeated episodes compromise immune functions and patients prone to infections, which could then induce rise in white blood cells to fight infections. BE hydrated, No strenous exercise ArePreventive.