A 64 yrs old hypertensive obsese female was undergoing surgery for fracture femur under general anaesthesia.Intra-operatively her end-tidal carbon dioxide decreased to 20 from 40 mm of Hg,followed by hypotension and oxygen saturation of 85%. What could be the most probable cause?

A 64 yrs old hypertensive obsese female was undergoing surgery for fra

1.	A 64 yrs old hypertensive obsese female was undergoing surgery for fracture femur under general anaesthesia.Intra-operatively her end-tidal carbon dioxide decreased to 20 from 40 mm of Hg,followed by hypotension and oxygen saturation of 85%. What could be the most probable cause?
A.	Bronchospasm
B.	Myocardial infarction
C.	Fat embolism
D.	Hypovolemia
Answer» D. Hypovolemia