Renal damage is a common sequelae of bites by many species of snakes and may
be primary or secondary and vary from mild transient rises in creatinine and
urea levels, detectable only by laboratory tests, through oliguric or anuric
renal failure, to rare cases of permanent renal damage (renal cortical necrosis).
Careful measurement of urine output is important to detect early evidence of
functional renal problems, which are otherwise asymptomatic, at least in the
critical early hours after a bite.
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