title: Duodenal intubation with secretin stimulus for diagnosis of giardiasis.
abstract: The use of secretin to facilitate the demonstration of Giardia lamblia in duodenal juice was studied in children under investigation for chronic diarrhoea. 30 children aged 3 months to 13 years, whose stools were negative for G. lamblia, were studied. G. lamblia was demonstrable in a sample of duodenal juice in 1 of the 30 children before an intravenous injection of secretin (1 or 2 mg/kg), but in 9 of the 30 children after secretin. It is concluded that examination of duodenal juice after secretin stimulus is an effective method of showing giardial infestation.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004386:Duodenum / Q000469:parasitology; D005873:Giardiasis / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D007441:Intubation, Gastrointestinal; D012633:Secretin
chemical_list: D012633:Secretin