Amylase to Creatinine Clearance Ratio

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Amylase to Creatinine Clearance Ratio

Urinary Amylase

U/L

Serum Amylase

U/L

Urinary Creatinine

mg/dL

Serum Creatinine

mg/dL

Result:

Calculation Formula

Amylase to creatinine clearance ratio = (Urinary Amylase/Serum Amylase)/(Urinary Creatinine/Serum Creatinine)

Description

English Name: Amylase to Creatinine Clearance Ratio (ACCR)

Normal value range: 2%–5%

The amylase to creatinine clearance ratio is a good early diagnostic indicator for acute pancreatitis; a ratio greater than 5% is significant for diagnosis.

References

Warshaw AL, Fuller AF Jr. Specificity of increased renal clearance of amylase in diagnosis of acute pancreatitis. N Engl J Med. 1975 Feb 13;292(7):325-8.

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