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Calcium oxalate crystals in the urine are the most common constituent of human kidney stones, and calcium oxalate crystal formation is also one of the toxic effects of ethylene glycol poisoning. Chemical properties
Crystals that can be found in normal urine include uric acid, monosodium urate, triple phosphate (ammonium magnesium phosphate), calcium oxalate, and calcium carbonate. [124] Crystals can also appear as poorly defined aggregates of granular material, termed amorphous urates or amorphous phosphates (urates form in acid urine while phosphates ...
[25] [53] Factors that promote the precipitation of oxalate crystals in the urine, such as primary hyperoxaluria, are associated with the development of calcium oxalate stones. [24] The formation of calcium phosphate stones is associated with conditions such as hyperparathyroidism [23] and renal tubular acidosis. [74]
Kidney stones are caused by high levels of the minerals calcium, oxalate, and phosphorus in urine. These minerals are normally found in urine and do not cause problems at low levels. However ...
Urine microscopy can reveal needle or envelope-shaped calcium oxalate crystals in the urine which can suggest poisoning; although these crystals may not be present until the late stages of poisoning. [29] Finally, many commercial radiator antifreeze products have fluorescein added to enable radiator leaks to be detected using a Wood's lamp.
Nephrocalcinosis is connected with conditions that cause hypercalcaemia, hyperphosphatemia, and the increased excretion of calcium, phosphate, and/or oxalate in the urine. A high urine pH can lead to nephrocalcinosis but only if it is accompanied by hypercalciuria and hypocitraturia , since having a normal urinary citrate usually inhibits the ...
Kidney stones: Cranberries contain oxalates, so they may increase your risk for kidney stones (which are made of calcium oxalate) when consumed in large quantities, says Karp. It’s best to limit ...
In kidney stones, calcium oxalate is the most common mineral type (see nephrolithiasis). Uric acid is the second most common mineral type, but an in vitro study showed uric acid stones and crystals can promote the formation of calcium oxalate stones. [1]