A 27 y/o woman is anesthetized with propofol, isoflurane, nitrous oxide & oxygen for a laparoscopy. She is placed in steep Trendelenburg's position after insertion of the needle through the abdominal wall, and carbon dioxide is insufflated. There is sudden onset of hypotension.

The hypotension may be due to:
1) carbon dioxide embolism
2) hemorrhage
3) compression of the inferior vena cava
4) position

Appropriate step(s) to take is (are) to:
1) flatten the table
2) inform the surgeon
3) administer epinephrine
4) discontinue nitrous oxide

Any or all of the above answers may be correct. oke: