Weight loss is a common assessment finding in generalized extracellular fluid volume
deficits (Daniels, 2010; Shafiee et al., 2003).
Using limb circumference and voltage electrode separation measurements in an accepted geometric model, we converted the data to extracellular fluid volume
The increased extracellular fluid volume
caused by sodium and water retention generates oedema.
The ranking of causes/mechanisms associated with IDH were the rate of ultrafiltration exceeds cardiovascular compensation (1st), cardiac dysfunction (2nd), and a decline in plasma osmolality and extracellular fluid volume
(3rd) (see Table 2).
In the long term, replenishment of the water deficit and so reduction of hypertonicity and expansion of extracellular fluid volume
abolish each of these stimuli.
A multifrequency bioimpedance analyzer (XiTRON Hydra 4200, ImpediMed; San Diego, California) that we modified for the purpose of testing people with transtibial amputation was used for assessing residual-limb extracellular fluid volume
Discuss the mechanism by which the kidney integrates signals from other body systems to control extracellular fluid volume
Both of these disorders can be associated with an elevated total body sodium content and normal or increased extracellular fluid volume
; however, effective plasma volume is reduced which restricts the delivery of sodium and water to the diluting segments of the nephron.
Using bioimpedance analysis, we measured extracellular fluid volume
changes on individuals with transtibial amputation while they ambulated with either elevated vacuum sockets, suction sockets, or sockets with lock-and-pin suspension.
Acute renal failure is a syndrome that is best described as a decline in renal function resulting in a disturbance of electrolyte and acid-base homeostasis, derangement of extracellular fluid volume
, and retention of nitrogenous wastes from protein catabolism (Brady, Brenner, & Lieberthal, 1996).
Although changes in extracellular fluid volume
lead to changes in distal tubule flow rate, [K.sup.+] secretion is relatively unaffected because of the offsetting effects of aldosterone.
Similarly, bioimpedance spectroscopy, which determines total body water and extracellular fluid volume
, is of potential benefit (Fisch & Spiegel, 1996).