What type of urinary sediment finding would most likely suggest chronic kidney disease?

Broad casts are typically associated with chronic kidney disease (CKD) as they indicate significant renal tubular damage and a loss of nephron function. These casts form in dilated tubules in the presence of severe renal impairment, reflecting the kidneys' inability to concentrate urine and retain normal function. Their presence in urinary sediments suggests a chronic process rather than an acute condition, as they signify long-standing kidney damage.

In contrast, hyaline casts are generally considered normal and can be seen in various conditions but do not specifically indicate chronic kidney problems. Crystals in urine may arise from metabolic derangements or dehydration but are not definitive indicators of CKD. WBC casts indicate inflammation typically linked to acute pyelonephritis or interstitial nephritis rather than chronic kidney disease. Thus, broad casts are the most relevant finding that signifies chronic renal failure, reflecting long-term damage to the kidney's structure and function.