[Cherrypicker999]

I would appreciate a view on this:

A 76 year old man has elective surgery to remove gall stones using keyhole surgery.
He has no history of heart problems.

Haemoglobin levels are as follows:

9:30am 13.6 (surgery started at 9:30 and ends at 11:30am)
2pm 4.4
3pm 2.2

Estimated blood loss during surgery = 500ml

Can one conclude (1 or 2):

A. The patient suffered modest post-operative blood loss
B. The patient suffered severe post-operative blood loss

Is the answer obvious?

The patient suffers left ventricular failure at 3pm and pronounced dead
at 3:50pm.

Would such a degree of blood loss result in left ventricular failure?


Can one conclude (1 or 2):

1. Given that he had little evidence of significant pre-existing heart disease and given that fluid/blood loss was modest post-operatively, the severity of his heart problems are difficult to account for.”

2. Given that he had little evidence of significant pre-existing heart disease and given that fluid/blood loss was severe post-operatively, the severity of his heart problems can be explained by the severe blood loss.

Is the answer obvious?

Any comments are appreciated.