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Use of the Serum BUN-to-Creatinine Ratio to Identify a Patient with Upper Gastrointestinal Tract Bleeding

Specialty:

Gastroenterology

Objective:

ICD-10:

Description:

An elevated ratio of serum BUN or urea to serum creatinine may localize gastrointestinal bleeding to the upper GI tract. The increase in BUN or urea is due to resorption of the nitrogen load.

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