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What are amorphous urates, how to identify them and when they arise

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The amorphous urates are a type of crystal that can appear due to the acidic pH of the urine or during the cooling of the sample, being able to be observed in a urine test together with other crystals, such as those of uric acid and calcium oxalate.

The crystals of amorphous urates do not cause symptoms, being confirmed only by means of an analysis of urine. However, when there is a large amount of urate in the body, it is possible to visualize a color change in the urinary tract that becomes pink, and it is recommended to consult a general practitioner or urologist for a clinical evaluation.

The treatment for amorphous urates is carried out according to the cause they produce, so the doctor could indicate changes in life habits, such as avoiding foods with a large amount of protein or rich in calcium, for example the specific treatment in case of alterations in the liver or kidneys.



How to identify them

The presence of amorphous urates in the urine does not cause symptoms, being identified by means of an urine test where the urinary sediments are evaluated, in which a sample of the second urine stream is collected and delivered to the laboratory for further analysis.

By means of this test, the pH of the urine is verified, which, in this case, is acidic; in addition to identifying by means of a microscope the presence of amorphous urates and crystals, such as the uric acid crystal and, on certain occasions, of calcium oxalate. Similarly, other characteristics of the urinary tract are determined, such as the presence, absence and number of epithelial cells, microorganisms, leukocytes and hematites. Understand how the urine test is performed.

Amorphous urate is identified in the urinary tract as a species of granules that vary from yellow to black and which is visualized in the urinary tract under a microscope. When there is a large amount of amorphous urate, it is possible that there is a macroscopic alteration, it is possible to identify the excess of amorphous urate in the urinary tract by means of the color change from misma to pink.

When amorphous urates arise

The emergence of amorphous urates is directly related to the pH of the urine, and it is often observed when the pH is equal to or greater than 5.5. In addition, other situations that can cause the emergence of amorphous urate and other crystals are:



  • High protein diet;
  • Low water intake;
  • Drop;
  • Chronic inflammation of the kidney;
  • Kidney stone;
  • Gallstone;
  • Liver diseases;
  • Severe kidney disease;
  • Diet rich in vitamin C;
  • Diet rich in calcium.

The amorphous urates can also appear as a consequence of the sample cooling, because the lower temperatures favor the crystallization of certain components of the urine, thus forming the urate. For this reason, it is recommended that the urine be analyzed for 2 hours after collection and not refrigerated to avoid interference with the result.

How is the treatment performed?

There is no treatment for amorphous urates, but only for your cause. For this reason, it is important that the result of the urine exam be analyzed together with the symptoms that may be presented by the person, and the result of other exams that may have been requested by the urologist or general practitioner to start the most adequate treatment.

In case it is due to dietary problems, it is recommended to change habits, avoiding foods with a large amount of protein or rich in calcium. On the other hand, in case of problems in the liver or in the kidneys, in addition to adapting the diet, the doctor can recommend the use of medication to comply with the causes of amorphous urate.

When only amorphous urate is identified if there are other changes in the urinary sediments, it is possible that due to temperature variations or the extended time between collection and analysis, it is recommended, in these cases, to repeat the examination to confirm the result.

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Consult a Doctor | Translated by User2937

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Isenção de responsabilidade – (versão em português): Este conteúdo foi preparado com base em informações de pesquisas, publicações adicionais ou no trabalho de tradução/verificação de um editor voluntário deste conselho web. Este é um serviço sem fins lucrativos. É altamente recomendável que todos os detalhes e informações publicadas sejam verificadas cuidadosamente. Nunca permitimos recomendações de medicamentos, bulas ou qualquer orientação sobre medicamentos. Nunca permitimos a política partidária como base para checagem. Para mais informações, leia nossos termos.

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