in guideline Anemia Acutely Severe Anemia Aplasia or hemolysis may be precipitated by another illness/infection in sickle cell disease patients. Acutely severe anemia is defined as Hb < 5g/dl or a recent acute drop in HB > 2g/dl below the individual's steady state value. If no steady state value is available, it can be detected by the presence of acutely symptomatic anemia (i.e. tachycardia, cardiac failure, shock). SCD Management guidelines - Tanzania SCDO None Request inclusion into relevant ontology. Please check with the working group as to how they feel about the label for this term. Acute Phenotype Management of Sickle Cell Disease - The United Republic of Tanzania