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 a measure of the resistance of a fluid to deformation under shear stress. It is commonly perceived as thickness, or resistance to pouring. Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is thin, having a low viscosity, while vegetable oil is thick having a high viscosity.