Urinary crystals formed due to precipitation of urine solutes include which of the following substances?

Urinary crystals are primarily formed due to the precipitation of various solutes present in the urine when certain conditions are met, such as changes in pH or concentration. Inorganic salts are common constituents of urinary crystals. These salts, which include calcium oxalate, uric acid, and phosphates, can precipitate out of solution, especially in concentrated urine or under specific pH conditions, leading to the formation of crystals.

The ability of inorganic salts to precipitate is influenced by factors such as urinary pH, temperature, and the presence of other ions. This allows them to supersaturate and crystalize, which is why they are frequently observed in urine samples analyzed for the presence of crystalline structures.

In contrast, proteins, urea, and glucose do not typically form crystals in urine under normal physiological conditions. Proteins can be present in urine but are not typically referred to as crystallizing components; rather, they indicate pathological conditions when found in significant amounts. Urea is a waste product of protein metabolism and remains dissolved in urine. Glucose, under normal circumstances, is also soluble in urine and does not crystallize unless there are extreme conditions, such as very high levels of glucose present, which might lead to other effects rather than crystal