IUGR With AFI 8 Cms 38 Weeks Pregnancy.

Hi, My wife is in 38 Weeks of pregnancy. Latest ultrasound conducted at the end of 37th week diagnosed low amniotic fluids at 8 Cms and low fetal weight ( 2kgs plus minus 300gms). Baby movements are good - more than 10-12 a day. Our doctor had admitted her 3-4 days ago and induced iv infusion of Herpin 200 ml, dextrose 10%, and Nacl solutions. She also advised to get admitted for 1 more day and continue drips of Nacl and Dextrose 5% and 10%. Doctor said we shall wait for 1 more week or 10 days, and then we will try for Normal delivery. Lastly, my wife is on L arginine sachet twice daily. Please note - we have a daughter and my wife had the similar history of IUGR  during 1st pregnancy. My daughter had a birth weight of 1.96 kg and AFI was 11 at her delivery. My questions are: 1. is this iv infusion therapy really helpful at this stage? 2. When is the right time to deliver baby? 3. What are the chances of having normal delivery?