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Table 3 Krouse staging for cases type and screen tested and type and screen to transfusion ratio

From: Blood transfusion requirements for endoscopic sinonasal inverted papilloma resections

Type and screen

n = 21 (26%)

Krouse stage

 

T4

5 (24%)

T3

14 (67%)

T2

2 (9%)

T1

0

Type and screen to transfusion ratio

7:1