A with tumor lysis syndrome (TLS) is taking allopurinol (Zyloprim). Which laboratory value should the nurse monitor to determine the effectiveness of the medication?
Allopurinol is used to decrease uric acid levels. BUN, potassium, and phosphate levels are also increased in TLS but are not affected by allopurinol therapy.
Blood urea nitrogen (BUN)
Serum phosphate
Serum potassium
Uric acid level