Several conditions can lead to elevated BUN levels in children, including:
Dehydration: Reduced fluid intake or excessive fluid loss can concentrate the blood, increasing BUN levels. Kidney Disease: Acute or chronic kidney conditions can impair the kidneys' ability to filter waste products, leading to elevated BUN. High Protein Diet: An excessive intake of protein can increase urea production and, consequently, BUN levels. Heart Failure: Reduced blood flow to the kidneys can impair their function and elevate BUN.
