Subject: | |
From: | |
Reply To: | |
Date: | Tue, 14 Nov 2006 07:30:30 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Dear Rachel and others;
You just confirmed what I have observed myself. I've been trying to dose one of our pet
mice who is recovering from an ear abcess with a syringe. The dose is 0.02 ml. Fluid
tension is a huge problem because the amounts are so small. The drips on the edges of
the syringe probably contain more medication than the drops in the syringe. I want a
micropipette to deal with this problem! But I've been looking at those little black lines
and thinking, they really are not that precisely lined up. I think with the quantities I've
been dealing with, I could be up to 100% off in my doses at times.
I have measured a huge amount of inaccuracy in the little lines on bottles. Those plastic
little bumps or colored lines are not precision tooled. I've seen parents overestimate
what their baby took by about 1-1/2 ounces. I've seen huge differences between the lines
on bottles when pouring from one type to another (plus the remainder that you can never
get out).
We all know that babies feed differently on a bottle than on the breast. I have seen it go
both ways --- much more and much less than on the breast. Even without a scale,
anyone who watches babies feed on a routine basis know this.
We also all know that how women release to the pump differs. Most women will still
release more to the pump after the baby has fed, but we all know those moms who
cannot release to the pump and the baby is well fed and thriving.
The most damaging thing about the research with plastic bottles is that many
pediatricians will try to argue that moms must pump and bottle feed to see what the baby
is getting.
If for anything else, a scale should be used to prevent forced pumping and bottle feeding
for a baby that is feeding on the breast. It helped me to give the endocrinologist (the
pediatrician never read my report) to diagnose a baby with an aldosterone probem who
was eating a lot from the breast (over 3 ounces), could not feed well from the bottle (1
oz with an hour of concentrated work), and losing weight rapidly.
I'd like to Weissingerize the situation. Comparing imprecisely tooled bottles to a
precisely tooled scale is about the same as saying "breastfed babies are abnormally
healthy, experiencing too few episodes of diarrrhea and respiratory infections compared
to normal infants who are fed formula from a bottle".
Instead, the studies actually show that "visual observation of the volume in a bottle is
imprecise and accurate, up to 30 ml off compared to measurement with a precise
weighing scale.
Scales are tooled and calibrated to be accurate and precise. That little number of 0.1 oz
or 2 grams or 0.5 oz tells you that testing went into the calibration. Did any researches
look into the bottle lines?
Best, Susan Burger
***********************************************
To temporarily stop your subscription: set lactnet nomail
To start it again: set lactnet mail (or digest)
To unsubscribe: unsubscribe lactnet
All commands go to [log in to unmask]
The LACTNET email list is powered by LISTSERV (R).
There is only one LISTSERV. To learn more, visit:
http://www.lsoft.com/LISTSERV-powered.html
|
|
|