Everyone should have this information. 
This way, if you choose to have IV fluids and or need them, newborn weight and loss/gain can account for this in the first weeks.
In 2011 a team of Canadian researchers published a study which linked routine IV fluids with excessive weight loss in newborns. The study concluded that it takes about 24 hours for babies to correct their fluid state and therefore a true birth weight should be done at 24 hours. Here’s the issue with with weighing baby at birth with a mother who received IV fluids: those fluids not only over saturate the mother (throwing her into an electrolyte imbalance), but this same thing happens to baby!
So let’s say you had the typical hospital birth..labored for 12 hours with fluids being pumped into you the entire time. Baby is born weighing 8lbs 8oz. You go to your 3 day postpartum checkup and baby is down to 7lbs 5oz! Well..thats over a whole pound lost. The provider you see suddenly encourages you to supplement with formula because your baby is losing too much weight. You wonder how could this be…youve been nursing round the clock, changed plenty of wet diapers. How could this happen? .
You spent months researching breastfeeding and all its benefits for it to come down to this?..and at only 3 days postpartum! You feel like you’ve failed, but you fear that your baby is starving. So what do you do? You supplement…with formula. Next your milk supply drops because you’re not bringing baby to the breast, but rather to the bottle. Before you know it you have an exclusively formula fed baby. .
This scenario is SO common, and I believe receiving IV fluids in labor is a HUGE part of the problem. As if the obstetric community hasn’t failed women enough..now their “harmless” interventions caused you to lose all confidence in your ability to feed & nourish your baby from your breasts. .
So what can you do???
1. STAY OUT OF THE SYSTEM!
2. Say NO to routine IV fluids
3. Bring this study to attention if this happens to you
4. Continue nursing your baby. Bring baby to breast as first solution when she cries
5. Nurse in demand NOT on schedule
#Repost @lovelylunabirth
Edited to add:
The Academy of Breastfeeding Medicine put this as well in one of its 2017 protocols.
Good info form evidence based birth.