There are two main fluid compartments water occupies in the body. Body fluids 1 and 2 linda costanzo phd.
Body Composition Testing Science For Sport
Measurement of body fluid compartments pdf. The intracellular fluid icf compartment is the system that includes all fluid enclosed in cells by their plasma membranes. If the tracer is metabolised a series of measurements can be made and assuming exponential decline first order kinetics the volume of distribution can be determined by extrapolation back. Composition of fluid intra and extracellular. The distribution of water between the major body fluid compartments. Upon human body fluid changes that accompany a 21 day combined heat and exercise acclimation regime. Neonatology questions and controversies second edition 2012.
How to measure the volumes of body fluid compartments using marker substances. Marker that diffuses freely not only in the water outside the cells but also crosses the cell membrane to reach the intracellular fluid. In contrast skeletal muscle contains 75 water. Sinan canan created date. Body fluids can be discussed in terms of their specific fluid compartment a location that is largely separate from another compartment by some form of a physical barrierthe intracellular fluid icf compartment is the system that includes all fluid enclosed in cells by their plasma membranesextracellular fluid ecf surrounds all cells in the body. The intracellular fluid is the fluid within the cells of the body.
Not interfere with body fluid distribution if the tracer is excreted in the urine then the loss can be determined and corrections made in the calculation. The differences in composition between the major body fluid compartments. Total body water tbw extracellular fluid ecfv plasma volume pv interstitial fluid ifv intracellular water icw red cell volume rcv and blood volume bv. How to measure the fluid volume intra and extra cellular total body water constitutes in men about 60 of body weight in women 50 is divided into icf and ecf. Measurement of body fluid volumes total body water is measured using dilution principle. Endre sulyok md phd dsc in nephrology and fluidelectrolyte physiology.
Human fluid volumes may be subdivided into several compartments. After studying this lecture the student should understand. The volume and composition of body fluid compartments are strictly controlled. Body fluids can be discussed in terms of their specific fluid compartment a location that is largely separate from another compartment by some form of a physical barrier. Ecw is under neuroendocrine control and the final regulation is accomplished by the kidney through retaining or excreting solutes and fluids. So the more muscles one has the higher the total body water will be.
A marker is injected that will be evenly distributed in all the compartments of body fluids. 18112012 14 copyright 2004 pearson education inc publishing as benjamin cummings. Ecf is further divided into interstitial extravascular and bloodplasma intravascular compartments. About two thirds is in the intracellular fluid compartment icf.
Gallery of Measurement Of Body Fluid Compartments Pdf
