What is the bladder outlet obstruction index for a man with a voided volume of 310mls, a Qmax of 13mls/sec and a pdet at Qmax of 90cmH20

What is the bladder outlet obstruction index for a man with a voided volume of 310mls, a Qmax of 13mls/sec and a pdet at Qmax of 90cmH20?

A- 76
B- 72
C- 74
D- 64***
E- 82


Answer D:

BOOI = pdet@Qmax- 2Qmax