The solid, undissolved particles in urine are preserved best in which pH condition?

The solid, undissolved particles in urine are preserved best in which pH condition?

• A. Better in acid urine
• B. Equally well at any pH
• C. Alkaline urine
• D. Neutral urine

Answer: (A)

pH affects how soluble many urine solids are. Uric acid, a common solid in urine, is poorly soluble in acidic conditions and tends to precipitate as crystals. When urine is alkaline, uric acid is converted to urate, which dissolves more readily, reducing solid crystals. So, keeping urine acidic helps preserve solid, undissolved particles by preventing their dissolution, making crystals like uric acid stay in the sediment.

pH affects how soluble many urine solids are. Uric acid, a common solid in urine, is poorly soluble in acidic conditions and tends to precipitate as crystals. When urine is alkaline, uric acid is converted to urate, which dissolves more readily, reducing solid crystals. So, keeping urine acidic helps preserve solid, undissolved particles by preventing their dissolution, making crystals like uric acid stay in the sediment.