Thanks for the query.
1.Let her take rest in lest lateral position, low salt diet, plenty of oral fluids.
Discuss with your doctor whether she needs medicines like vasodilators, arginine
sachets etc. and follow her advice.
2.She has to take regular antenatal checkups with ultrasound
examination and biophysical profile
estimations to detect any abnormality at the earliest possibility.
Sufficient rest, walking, weight management
, good diet are needed.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429