The HLH-2004 score was developed primarily for:
True of false: no single clinical or laboratory parameter has sensitivity and specificity to definitively detect HLH.
Sort the clinical parameter (on top) into HLH-2004 and non-HLH buckets (at bottom):
What is the threshold level for serum ferritin (ng/ml or mg/L) in the HLH-2004 score?
True of false: the HLH-2004 criteria include elevated serum AST and/or ALT levels.