Purpose: To predict the probability of red cell product transfusion associated with total joint arthroplasty of the knee or hip.				Citations with documentation. 05.01.02	Sriram & Svirbely 1998
conversion	enter
hemoglobin in g/dL		g/dL equals	0	g/L
body weight in pounds		lbs equals	0	kilograms
data	enter
Is the patient to have a knee or hip total arthroplasty? (Y or N)		:-):-):-)
hemoglobin in g/L		g/L				2
body weight in kilograms		kilograms				2
enter an "x" in the appropriate column for each question (only 1 answer per row)
	knee	hip	bilateral knee	bilateral hip
arthroplasty type					Yes	3
	primary	revision
type of surgery					Yes	0
calculate	result
data complete?	Yes
evaluation appropriate?	No	Applies to patients with knee or hip total joint arthroplasty(ies).
predictive score	7
probability of transfusion	40.0%