Uric acid crystals in urine are typically seen in which urine pH?

Prepare for the CAMLPR Chemistry Test. Enhance your understanding with interactive quizzes, flashcards, and detailed explanations. Boost your confidence and readiness for exam success!

Multiple Choice

Uric acid crystals in urine are typically seen in which urine pH?

Uric acid crystals form in acidic urine because their solubility depends on pH. Uric acid is a weak acid with a pKa around 5.3–5.5; at low pH it stays largely undissociated and is less soluble, leading to precipitation as crystals. In alkaline urine, uric acid converts to more soluble urate, so crystals are less likely to form. So the classic setting for uric acid crystals is acidic urine.

Uric acid crystals form in acidic urine because their solubility depends on pH. Uric acid is a weak acid with a pKa around 5.3–5.5; at low pH it stays largely undissociated and is less soluble, leading to precipitation as crystals. In alkaline urine, uric acid converts to more soluble urate, so crystals are less likely to form. So the classic setting for uric acid crystals is acidic urine.

More practice questions