Clinical Chemistry - Electrolytes
by
Michael Bishop
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,Potassium Major Intracellular cation
Electrolytes Ions capable of carrying an electric charge
Anions, cations Two types of Ions
Anions Ions that carry (-) charge and move toward the anode
Cl, HCO3, PO4 Example of anions
Cations Ions that carry (+) charge and move toward the cathode
Na, K, Mg, Ca Example of cations
40%-75% percentage of water in body weight
Nutrients Water transport _____ to the cells
Cell volume Water determines __________
Waste products Water removes _________
Coolant Water act as body's ________
Intracellular Fluid (ICF) 2/3 of water in the body is located here
Extracellular Fluid (ECF) 1/3 of water in the body is located here
Passive Transport, Active Transport Concentration of ions is maintained by these
Passive Transport passive movement of ions across a membrane
, Active Transport Requires energy to move ions across cell membrane
Active Transport ATPase-dependent ion pumps
Osmolality concentration of solutes per kilogram of solvent (millimoles/kg)
Thirst Sensation, Arginine vasopressin hormone (AVP) Osmolality is regulated by these mechanisms
Thirst Sensation Response to consume more fluids
Thirst Sensation Prevents water deficit
Antidiuretic Hormone (ADH) Another name for Arginine vasopressin hormone (AVP)
Arginine vasopressin hormone (AVP) ↑ reabsorption of water in kidneys
H2O load Arginine vasopressin hormone (AVP) is suppressed in excess ________
Arginine vasopressin hormone (AVP) Activated in water deficit
Atrial Natriuretic Peptide (ANP) ↑ Na+ excretion in the kidney
Volume expansion GFR ↑ w/ ________
Volume depletion GFR ↓ w/ ________
Serum or urine Specimen of choice in osmolality determination
1.858°C Any substance dissolve in a solvent will ↓ freezing point by ______
0.52°C Any substance dissolve in a solvent will ↑ boiling point by _____