The maximal amount of contrast material that can be used without causing deterioration in renal function can be calculated based on the patient's body weight and serum creatinine.
limit of contrast material to use =
= (dose of contrast material in mL) / (serum creatinine in mg/dL)
where:
• dose of contrast material in mL = MIN (300 mL, ((5 mL of contrast) * (body weight in kilograms)))
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