I had PIH alone with my first pregnancy with no significant protein in my urine. I was well controlled on 200 mg Labetalol 2 times a day up until the end when I was hospitalized at 36 weeks. My pressures were running anywhere from 120/80s while laying on left side to 150s/90-100s while sitting up. I was induced at 37 weeks, and mag was only mentioned by one nurse, but she didn't say it would "probably" be used, just that it could be if absolutely necessary. They ended up not having to use it because my pressures thankfully stayed good during delivery. But this is only my case, I'm not sure what the general recommendations are. I want to mention too that my OB elected for a "slow induction" as he called it because it would be less stressful on my body, and less likely to raise my pressures. I don't know if this is general practice, I think it probably is not from what I have seen on these boards. It seemed to work for me though. He started with a low dose of Cervidil the first morning, another low dose in the afternoon, another low dose the next morning, and then I went into labor myself the next day with no Pitocin. I ended up delivering my daughter at 3:54 pm the second day. He said the "slow induction" could take up to 3 days, and I started the induction with my cervix being thick and closed.
Miscarriage at 8 weeks- 5/09
Abby born 37 weeks 4 days on 3/25/10 due to PIH and IUGR- 5 lbs 0.5 oz
Chemical Pregnancy lost at 5.5 weeks- 3/11
Pregnant again due Sept. 3 (now chronic hypertensive and on Labetalol)