Overview
Clinical Orientation
A sudden urate load can obstruct renal tubules within hours; a persistent urate burden can injure the renal interstitium over years.
A sudden urate load can obstruct renal tubules within hours; a persistent urate burden can injure the renal interstitium over years. The acute pattern is most often encountered with tumour lysis syndrome (TLS), particularly after treatment of rapidly proliferating haematological malignancies. The chronic pattern is associated with sustained hyperuricaemia and slowly progressive tubulointerstitial damage. The RN's first task is to identify which pattern is present and whether the patient has an immediately dangerous TLS complication. Falling urine output, rising creatinine, hyperkalaemia, and dysrhythmia change the priority from routine laboratory follow-up to urgent treatment and escalation. In Canada, the RN administers ordered therapy, verifies medication-specific safety requirements, assesses response, and escalates according to the prescriber’s order, oncology/nephrology plan, and institutional policy.