Uric Acid: The Gout Pitfall, the Asymptomatic Hyperuricemia Debate, and Tumor Lysis
Uric Acid: The Gout Pitfall, the Asymptomatic Hyperuricemia Debate, and Tumor Lysis Uric acid is often NORMAL during a gout flare. Asymptomatic hyperuricemia almost never needs treatment. And yet both mistakes happen daily. Uric acid is a deceptively simple lab that generates outsized confusion. The two most common errors: using it to rule out gout during an acute flare (when it's often normal) and treating asymptomatic hyperuricemia (which guidelines recommend against). The #1 Pitfall: Normal Uric Acid During Acute Gout During an acute gout flare, serum uric acid drops in up to 40% of patients due to the inflammatory response (IL-6 increases renal uric acid excretion) and redistribution of urate into the inflammatory joint. A normal serum uric acid does NOT rule out gout. The gold standard for acute gout diagnosis is synovial fluid analysis showing negatively birefringent monosodium urate crystals under polarized light. If you can't aspirate the joint, di...