At all. Especially if you're a women. In fact, try, at all possible costs to avoid one. Tell your loved ones and put in advanced medical directives that you want nothing to do with them. The problem is that many poor have no choice so dogma is given priority over your health.

http://www.motherjones.com/politics/2013/10/catholic-hospitals-bishops-contraception-abortion-health-care

This is such an important issue. The ACLU is suing catholic hospitals for this.

http://www.npr.org/blogs/health/2013/12/02/248243411/aclu-sues-u-s-bishops-says-catholic-hospital-rules-put-women-at-risk

http://rhrealitycheck.org/article/2013/03/25/dont-take-her-to-catholic-hospital/

http://www.irishcentral.com/news/safety-of-women-in-catholic-hospitals-questioned-by-top-bioethicist-94688044-237696791.html

http://america.aljazeera.com/opinions/2014/2/dangers-of-a-catholichospitaluntold.html