the purpose of this study is twofold : ( 1 ) to correlate magnesium levels of serum with those of cerebrospinal fluid in patients with preeclampsia receiving intravenous magnesium sulfate , and ( 2 ) to determine whether the magnesium ion crosses the blood-brain barrier in significant amounts after intravenous magnesium sulfate therapy .
C0032914
preeclampsia
C0024480
magnesium sulfate