potassiumpo‧tas‧si‧um /pəˈtæsiəm/ noun [uncountable] 
Word Origin
Word OriginWORD ORIGINpotassium
ExamplesOrigin:
1800-1900 Modern Latin, English potashEXAMPLES FROM THE CORPUS
word sets- As is the case for calcium, correction of potassium deficiency may not be possible until the serum magnesium level is normalized.
- Diarrhea, due to gastrointestinal disorders, infections, and even laxative abuse, may lead to substantial potassium losses.
- Growth failure is also seen in hypokalemic children, particularly those with chronic potassium depletion.
- Perception, that is to say, boils down to the passage of sodium, potassium and other ions across semi-permeable membranes.
- The electrocardiogram provides a graphic indication of the membrane effects of altered potassium concentrations.
- The medical experts found potassium levels were particularly high in some children.
- These can be bleached by applying a potassium ferricyanide solution to them.
- Unlike sodium, potassium exhibits no renal threshold being excreted into the urine even in K depleted states.
WORD SETS► Elements
Collocationsaluminium, nounargon, nounarsenic, nounbarium, nounbase metal, nounbismuth, nouncadmium, nouncaesium, nouncalcium, nouncarbon, nounchlorine, nounchromium, nouncobalt, nouncopper, nounferrous, adjectivegold, noungold, adjectivegolden, adjectivehalogen, nounhydro-, prefixhydrogen, nouniodine, nouniridium, nouniron, nounisotope, nounkrypton, nounlead, nounlithium, nounmagnesium, nounmanganese, nounmercury, nounmolybdenum, nounnickel, nounnitrogen, nounoxygen, nounphosphorus, nounplatinum, nounplutonium, nounpotassium, nounprecious metal, nounradium, nounradon, nounselenium, nounsilicon, nounsilver, nounsilver, adjectivesodium, nounstrontium, nountin, nountin, adjectivetitanium, nountrace element, nountungsten, nounuranium, nounxenon, nounzinc, noun
COLLOCATIONS FROM THE CORPUSNOUN► chloride
a common soft silver-white metal that usually exists in combination with other substances, used for example in farming. It is a chemical element: symbol K· Inorganic salts such as sodium chloride, potassium chloride and potassium iodide form eutectic mixtures with water.· In the future, many salty foods will use mixtures of potassium chloride to redress the balance.· In his car-it looks like a Passat-he has cylinders of carbon monoxide and bottles of potassium chloride.· He drives around Michigan with bottles of potassium chloride and cylinders of carbon monoxide.
► concentration· Proton concentrations for each sample were then calculated from the hydrogen ion activity and the combined sodium and potassium concentrations.· This is effective not because it lowers serum potassium concentration but because it directly antagonizes the membrane depolarizing effect of hyperkalemia.· The electrocardiogram provides a graphic indication of the membrane effects of altered potassium concentrations.· HYPOKALEMlA A low plasma potassium concentration is not always accompanied by a deficit in total body potassium.· Occasionally, a substantially increased platelet or white cell count may lead to apparent increases in plasma potassium concentration.· What is actually observed in this Circumstance is an increase in serum potassium concentration.· As a result, extracellular potassium concentration decreases.· This causes an increase in extracellular potassium concentration.
► excretion· Sodium Sodium delivery to the distal tubule is necessary for adequate potassium excretion.· Should the supply of sodium ions presented to the distal exchange sites decrease, potassium excretion decreases also.· Acidemia tends to decrease potassium excretion, and alkalemia tends to increase potassium excretion.
► level· The medical experts found potassium levels were particularly high in some children.· She suffered from dehydration, her potassium levels were dangerously low, and she had lost 15 pounds.· The serum potassium level is sometimes helpful in determining acid-base status.· However, aldosterone is also regulated by sodium and potassium levels and more importantly by the renin-angiotensin system.· The serum potassium level may be of assistance in suggesting whether the patient is acidemia or alkalemia, as described above.· For example, in acidosis from diarrhea, the serum potassium level is often low rather than high.
► permanganate· The sergeant sat down, placed his feet into the ice-cold potassium permanganate solution and heaved a euphoric sigh of relief.· Convenient and effective dyes for introducing into water flows include potassium permanganate, gentian violet, and methyl blue.· Some one has suggested I should try potassium permanganate, but what quantities per gallon should I use?· At the same time it is recommended that sufficient potassium permanganate crystals be added to the water to turn it violet.
► plasma· HYPOKALEMlA A low plasma potassium concentration is not always accompanied by a deficit in total body potassium.· Occasionally, a substantially increased platelet or white cell count may lead to apparent increases in plasma potassium concentration.
► serum· His temperature was 37°C, pulse 84/ min, and serum potassium 3.8 mmol/l.· This is effective not because it lowers serum potassium concentration but because it directly antagonizes the membrane depolarizing effect of hyperkalemia.· The serum potassium level is sometimes helpful in determining acid-base status.· The serum potassium level may be of assistance in suggesting whether the patient is acidemia or alkalemia, as described above.· What is actually observed in this Circumstance is an increase in serum potassium concentration.· For example, in acidosis from diarrhea, the serum potassium level is often low rather than high.
VERB► increase· Acidemia tends to decrease potassium excretion, and alkalemia tends to increase potassium excretion.· Additionally, there will be an increased renal excretion of potassium causing a decrease of potassium in the extracellular fluid. 258.