the very best time to have it done is immediately after giving birth. there is NO reason why she should have to arrange a separate procedure.
they're a hospital, they should do hospital things or get the hell out of the business.
oh, and chances are they'll do it because:
http://www.sfgate.com/health/article...on-6463205.php
and that was a case without health issues.
and note:
Although sterilization is normally voluntary, major medical organizations say a tubal ligation immediately after a woman’s last intended pregnancy is such a safe and quick procedure, and so effective in preventing unwanted future pregnancies, that it should be considered “urgent” medical care.
“The immediate (post-childbirth) period ... is the ideal time to perform sterilization because of technical ease and convenience for the woman and physician,” said the American College of Obstetricians and Gynecologists in a 2012 report. “Obstetrician-gynecologists need to identify themselves as champions or patient advocates for post-partum sterilization in their respective hospitals.”