I have no evidence for what to wear, just some practical thoughts.

At one very busy hospital I worked we wore business casual with lab
coats.  This let everyone know we were something other than the RNs
caring for the patient.  This was a benefit because while I was more
than willing to assist with any nursing task as needed (I am also an
LDRP RN), it really takes away from the time I have available to work
with nursing moms.  The doctors respected that we were something
different and would not look to us when they needed a nurse for other
care.  On a busy unit where the docs did not really know who did what,
this was a bonus

I am currently a manager of a level 1 LDRP.  We have our LCs wear what
the nurses wear.  The rational for this is that the parents are taught,
for security reasons, that all the Birthing Inn staff wear a special
uniform. They are taught to question anyone who enters their room
wearing something other than the uniform.  We are a small enough unit
that the doctors know who the LCs are and tend not to tap them for
rounds and such.   

Lori Peters  RN IBCLC

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