In women, premature delivery, insulin-dependent diabetes mellitus (IDDM),4 obesity, Cesarean section and endocrine disturbances can either delay or suppress lactogenesis II and affect the successful establishment of lactation (18).
third spacing is a shift of fluid into the interstitial spaces--where there is little fluid normally perfusing. this patient differs from the pt with generalized edema because the third spacing is just that... all the fluid has shifted from the other compartments and although they look all puffy and full of fluid, they are actually hypovolemic.
Viscosity is determined by the time it takes a given amount of liquid to flow through an instrument called a viscometer tube; essentially a narrow pipe. A good example of viscosity is liquid flowing through a straw: water, which has a low viscosity, will flow more freely than honey, which has a high viscosity.