A patient with the small bowel syndrome is at risk for oxalate nephrolithiasis. Certain steps can be taken to reduce this risk.
Normally in the gut calcium binds with dietary oxalate to reduce absorption. In the short bowel syndrome calcium may bind with unabsorbed fatty acids and bile salts may increase oxalate absorption.
Factors affecting stone risk:
(1) amount of oxalate in diet
(2) oral calcium intake
(3) level of hydration
(4) amount of oxalate in the urine
Risk Factor |
Increased Stone Risk |
Decreased Stone Risk |
oxalate in diet |
unrestricted |
low oxalate diet |
oral calcium intake |
low |
oral calcium salt supplements given |
hydration |
dehydration |
well-hydrated |
oxaluria |
high |
low |
Purpose: To reduce the risk of oxalate nephrolithiasis in a patient with the short bowel syndrome.
Specialty: Nephrology, Clinical Laboratory
Objective: risk factors
ICD-10: K91.2,