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Electrolytes

MLT Electrolytes

TermDefinition
electrolytes compounds which dissociate in solution to form ions
non-electrolytes molecules that remain intact in body water e.g. glucose, BUN, creatinine
renin-angiotensin-aldosterone system which aids in regulation of blood volume
renin enzyme from kidney, converts angiotensinogen to angiotensin I
angiotensin II 3 functions - vasoconstriction, acts on hypothalamus to initiate ADH secretion, acts on adrenals to secrete aldosterone
aldosterone adrenal hormone which acts on kidney to retain sodium (& water) and excrete potassium
natriuretic peptides ANP, BNP hormones which promote sodium (and water) excretion from the kidney
osmolality physical property of a solution based on the concentration of solutes per kilogram of solvent
colligative properties describes the behavior of solutions that can change based solely on the concentration of particles present
ADH-thirst sensation regulatory mechanisms of the hypothalamus stimulated by plasma osmolality
bone minerals calcium, phosphorus, magnesium
lactate by-product of anaerobic metabolism
anion gap estimation of the difference between the unmeasured anions and unmeasured cations
ionized calcium physiologically active form of calcium
total calcium total of all forms of calcium in plasma (protein-bound, anion-bound, free)
sodium major extracellular cation
potassium major intracellular cation
chloride major extracellular anion
bicarbonate extracellular anion
ISE ion selective electrode - measures the voltage (potential) differences between the measuring electrode and the reference electrode
mmol/L units for electrolyte measurements
Created by: pambj