Crossword clues for Blood may do this 4 letters:CLOTBlood may do thisCLOTBlood may do itCLOTWhat a blood thinner may preventRUNCOLDWhat your blood may do when you're frightenedREGISTEREDNURSEOne may draw bloodDONOROne may give bloodDIEINProtest for which people lie still and may employ fake blood (this is an actual thing)CAVAEVenae ___ (major blood vessels that may be inferior or superior)RHFACTORIt may be in your bloodTESTSThey may be run on bloodREDCROSSIt may be out for bloodSERUMWhat may be tested in a blood testPLASMAIt may be stored in a blood bankGODCHILDRENThey may not be related by blood