Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Lactose intolerance laboratory findings
Introduction
Overview
Overview
Laboratory findings consistent with the diagnosis of lactose intolerance include stool osmotic gap of >125Â mOsm/kg, stool pH <6.
Laboratory Findings
Laboratory Findings
- Laboratory findings consistent with the diagnosis of lactose intolerance include:[1]
- Stool osmotic gap of >125 mOsm/kg due to unabsorbed carbohydrates.
- Normal Stool osmotic gap:  −290 [(Na+K) × 2]
- Â Stool pH <6Â due to bacterial fermentation of unabsorbed lactose to hydrogen gas in the colon.
- Stool osmotic gap of >125 mOsm/kg due to unabsorbed carbohydrates.
References
References
- ↑ Kvissberg MA, Dalvi PS, Kerac M, Voskuijl W, Berkley JA, Priebe MG, Bandsma RH (2016). “Carbohydrate malabsorption in acutely malnourished children and infants: a systematic review”. Nutr. Rev. 74 (1): 48–58. doi:10.1093/nutrit/nuv058. PMC 4684688. PMID 26578625.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mahda Alihashemi M.D. [2]