Regarding the formation of renal calculi, what function does pyrophosphate, potassium citrate, and magnesium perform?
a. They inhibit crystal growth.
b. Pyrophosphate, potassium citrate, and magnesium stimulate the supersaturation of salt.
c. They facilitate the precipitation of salts from a liquid to a solid state.
d. Pyrophosphate, potassium citrate, and magnesium enhance crystallization of salt crystals to form stones.
Answer: a. They inhibit crystal growth.
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