NURS 2710 Concept Outcomes & Test Blueprint – Exam #4
Concepts: Fluid & Electrolytes, Nutrition, Elimination, Sleep & Rest, & Maternal Child (Weeks 12
– 16)
Concept: Fluid & Electrolytes = 15 questions
1. Differentiate between the various body fluid compartments
Intracellular (ICF)
•Fluid within cells
•2/3 of total body water
•Potassium major intracellular ion
•Found inside cells and are made up of protein, water,0electrolytes, and solutes. The
most abundant electrolyte in intracellular fluid is0potassium. Intracellular fluids are
crucial to the body’s functioning.0
Extracellular (EFC)
•Fluid outside of cells
•1/3 of total body water – sodium major extracellular ion
•Three divisions:
Interstitial – between cells outside blood vessels
Intravascular – within vessels, blood, or plasma
Transcellular – such as CSF, pleura, synovial, etc.
Fluids found outside of cells. The most abundant0electrolyte in ECF is sodium. The
body regulates sodium levels to control the0movement of water into and out of the
extracellular space due to osmosis.0
2. Fluid can move between compartments (through selectively permeable membranes) by a
variety of methods:
Active transport – requires energy (ATP)
Diffusion – DOWN the gradient
•Electrolytes & particles move from a higher concentration to a lesser concentration
(opposite Osmosis below).
•Passive process that is Seeking equalization.
Osmosis – Movement of H20 only across cell membranes.
•Pulls fluid into compartment that has the higher concentration (osmotic pressure)
until equalization occurs.
•Isotonic, hypotonic, and hypertonic IV solutions
Filtration – hydrostatic pressure
•Movement of fluid between interstitial and vascular compartments – may result in
edema
3. Describe the processes involved in regulating extracellular fluid volume, osmolarity, and fluid
distribution
Regulating extracellular fluid
