Fluid Balance & Electrolytes Flashcards
Acid
acid: substance containing a hydrogen ion that can be liberated or released
Acidosis
acidosis: condition characterized by a proportionate excess of hydrogen ions in the extracellular fluid, in which the pH falls below 7.35
Active transport
active transport: movement of ions or molecules across cell membranes, usually against a pressure gradient and with the expenditure of metabolic energy
Alkalosis
alkalosis: condition, characterized by a proportionate lack of hydrogen ions in the extracellular fluid concentration, in which the pH exceeds 7.45
Anions
anions: ion that carries a negative electric charge
Antibody
antibody: immunoglobin produced by the body in response to a specific antigen
Antigen
antigen: foreign material capable of inducing a specific immune response
Autologous transfusion
occurs when a patient donates one’s own blood for a transfusion
Base
base: substance that can accept or trap a hydrogen ion; synonym for alkali
Blood typing
the laboratory examination to determine a persons blood type
Buffer
buffer: substance that prevents body fluid from becoming overly acid or alkaline
Capillary Filtration
passage of fluid across the wall of capillary; results from the force of blood pushing against the walls of the capillaries
Cation
cation: ion that carries a positive electric charge
Colloid osmotic pressure
colloid osmotic pressure: pressure exerted by plasma proteins on permeable membranes in the body; synonym for oncotic pressure
Cross-Matching
cross-matching: act of determining the compatibility of two blood specimens
Dehydration
dehydration: decreased water volume in body tissue
Diffusion
diffusion: tendency of solutes to move freely throughout a solvent from an area of higher concentration to an area of lower concentration until equilibrium is established
Edema
edema: accumulation of fluid in extracellular spaces
Electrolyes
electrolytes: substance capable of breaking into ions and developing an electric charge when dissolved in solution
Extracellular fluid (ECF)
extracellular fluid (ECF): fluid outside the cells; includes intravascular and interstitial fluids
Hydrostatic Pressure
hydrostatic pressure: force exerted by a fluid against the container wall
Hypercalcemia
hypercalcemia: excess of calcium in the extracellular fluid
Hyperkalemia
hyperkalemia: excess of potassium in the extracellular fluid
Hypermagnesemia
hypermagnesemia: excess of magnesium in the extracellular fluid
Hypernatremia
hypernatremia: excess of sodium in the extracellular fluid
Hyperphophatemia
hyperphosphatemia: above-normal serum concentration of inorganic phosphorus
Hypertonic
hypertonic: having a greater concentration than the solution with which it is being compared
Hypervolemia
hypervolemia: excess of plasma
Hypocalcemia
hypocalcemia: insufficient amount of calcium in the extracellular fluid
Hypokalemia
hypokalemia: insufficient amount of potassium in the extracellular fluid
Hypomagnesmia
hypomagnesemia: insufficient amount of magnesium in the extracellular fluid
Hyponatremia
hyponatremia: insufficient amount of sodium in the extracellular fluid
Hypophosphatemia
hypophosphatemia: below-normal serum concentration of inorganic phosphorus
Hypotonic
hypotonic: having a lesser concentration than the solution with which it is being compared
Hypovolemia
hypovolemia: deficiency of blood plasma
Intracellular fluid (ICF)
intracellular fluid (ICF): fluid within the cell; synonym for cellular fluid
Ion
ion: atom or molecule carrying an electric charge in solution
Isotonic
isotonic: having about the same concentration as the solution with which it is being compared
Osmosis
osmosis: passage of a solvent through a semipermeable membrane from an area of lesser concentration to an area of greater concentration until equilibrium is established
pH
pH: expression of hydrogen ion concentration and resulting acidity of a substance
Solutes
solutes: substance dissolved in a solution
Solvents
solvents: liquid holding a substance in solution