In electrical burn injuries, which parameter is used to monitor renal function?

• A. Heart rhythm monitoring
• B. BUN/Creatinine
• C. Entrance/exit wounds assessment
• D. ARDS monitoring

Answer: (B)

Electrical burn injuries can cause significant muscle damage that releases myoglobin into the bloodstream, risking acute kidney injury. To monitor how well the kidneys are filtering, clinicians look at waste products in the blood. The most informative measures are BUN and creatinine, with creatinine being a more reliable indicator of glomerular filtration rate because it rises when kidney function declines. BUN can vary with hydration status and protein intake, so it’s helpful but not as specific. Urine output is also watched closely because it provides an immediate read on kidney function. Other options don’t assess renal function: heart rhythm monitoring checks for electrical heart issues, entrance and exit wounds describe burn extent, and ARDS monitoring relates to lung injury and respiratory failure.