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Fluid & Electrolytes
Fluid and electrolytes
27
Medical
Professional
06/15/2011

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Term
Fluid volume deficit
Definition
dehydration in which the fluid intake of the body is not sufficient to meet the fluid needs of the body
Term
Fluid volume excess
Definition
fluid intake or fluid retention that exceeds the fluid needs of the body also called overhydration or fluid overload
Term
homeostasis
Definition
the tendency of biological systems to maintain relatively constant conditions in the internal environment while continuously interacting with and adjustin to changes originating within or outside the system
Term
Hypercalcemia
Definition
a serum calcium level that exceeds 10 mg/dl
Term
Hyperkalemia
Definition
a serum potassium level that exceeds 5.1 mEq/L
Term
Hypermagnesemia
Definition
a serum magnesium level that exceeds 2.6 mg/dl
Term
hypernatremia
Definition
a serum sodium level that exceeds 145/mg/dl
Term
Hyperphosphatemia
Definition
a serum phosphorus level that exceeds 4.5 mg/dl
Term
Hypocalcemia
Definition
a serum calcium level less than 8.6 mg/dl
Term
Hypokalemia
Definition
a serum potassium level leess than 1.6 mg/dl
Term
Hypomagnesemia
Definition
a serum magnesiu level less thaqn 1.6 mg/dl
Term
Hyponatremia
Definition
a serum sodium level less than 135 mEq/L
Term
Hypophosphatemia
Definition
a serum phosphorus level less than 2.7 mg/dl
Term
electrolyte
Definition
substance that is dissolved in solution and some of its molecules split or dissociate into electrically charged atoms or ions
Term
Milliequivalents
Definition
milliequivalents provide information about the number of anions or cations available to combine with other anions or cations
Term
Intracellular
Definition
refers to all fluid inside the cell, most body fluids are inside the cells
Term
extracellular
Definition
fluid outside the cells
Term
Intravascular compartment
Definition
fluid without blood vessels
Term
Interstitial fluids
Definition
fluids between the cells and blood vessels
Term
Third-spacing
Definition
accumulation and sequestration of trapped extracellular fluid in an actual or potential body space as a result of disease or injury, trapped volume represents a volume loss and is unavailable for normal physiological processes
Term
Edema
Definition

excess accumulation of fluid in the interstitial spaces

Localized due to tramatic injury from accident/surgery

generalized edema-excessive accumulation of fluid in the interstitial space throughout the body as a result of a condition such as cardiack, renal or liver failure

Term
Body fluid
Definition

provides transportation of nutrients to cells carries waste products from the cells

10% loss of body fluid in adult serious

20%loss of body fluid in adult fatal

Term
Diffusion
Definition

movement of particles in all directions through a solution

spreads from higher concentration to lower concentraation

Term
Permeable membrane
Definition
allow substance  to pass through without restrictions
Term
selective permeable membrane
Definition
allows some substances to pass through but prevents others from passing through freely
Term
Osmosis
Definition
Osmotic pressure is the force that draws the water from a less concentrated solution through a selectively permeable membrane into a more concentrated solution
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