Jennifer writes:

On the  dr's scale, she weighed 7# 3 oz (naked). On my scale Friday 
afternoon, she  weighed 6# 12 oz (also naked). The dr has a mechanical baby scale; 
I have a  brand new Tanita BD-815U digital scale. Which is more likely to be 
accurate? 7  oz is a huge discrepancy! 
 
~~~ I find scales in pediatrician offices can give  notoriously  unreliable 
readings. The mechanical scale in one local MD office registered a 5  ounce 
difference between that and mine, when we moved baby from one to the other  
within seconds. Pediatric scales can be old, used more often, failed to be  
zeroed properly in a busy office, and babies are weighed at different times 
 during the GI "pathway" ( meaning baby may have just nursed, and not 
urinated in  a few hours, giving a higher weight, or baby had not nursed in 2 
hours, and had  just peed, and had a lower weight... things like that, so it's 
hard to compare.)  The only thing I trust when there are issues to tease 
out, is my scale to my  scale, same time in the feeding cycle ( like baby 
naked, not having nursed in at  least 90 minutes, and a recent diaper change if 
needed).  ( Or in rare  cases of need, good digital scale mom rents to same 
scale.) It's not perfect I  know, but it's the better consistency than weight 
taken during a ped visit, when  we are looking at weights close together 
especially. I also take time to weigh  something that should register at a 
known weight, like a teaspoon full of water,  or a diaper I know should weigh 
0.6 and see if it registers as expected, as a  check.
 
Hope that helps with that part of the issue...
Peace,
Judy  

Judy LeVan  Fram, PT, IBCLC, LLLL
Brooklyn, NY,  USA
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