GI Flashcards
Inheritance of Cleft Lip
Most are multifactorial inheritance; also autosomal dominant in families (most with isolated cleft palate)
Tx of CLAP
Treatment—surgical correction
− Lip at 3 months of age
− Palate at <1 year
Causes of chronic diarrhea (infant)
• Postinfectious lactase deficiency • Milk/soy intolerance • Chronic diarrhea of infancy • Celiac disease • Cystic fibrosis
Causes of chronic diarrhea (child)
Postinfectious lactase deficiency • Irritable bowel syndrome • Celiac disease • Lactose intolerance • Giardiasis • Inflammatory bowel disease
Causes of chronic diarrhea (adolescent)
Irritable bowel syndrome • Inflammatory bowel disease • Lactose intolerance • Giardiasis • Laxative abuse
Diarrhea associated with:
Nurseries, daycare
Enteropathogenic E. coli
Enteropathogenic E. coli TX
Supportive care in severe cases, neomycin or colistin
Enterotoxigenic /Traveler’s diarrhea
_______
E. coli
Enterotoxigenic /Traveler’s diarrhea Tx
Supportive care trimetho prim-sulfamethoxazole in severe
cases
Enterhemorrhagic E. coli Association
Hemorrhagic colitis, HUS
Enterhemorrhagic E. coli Tx
No antimicrobial therapy in suspected cases due to ↑ risk
of HUS; supportive care only
Salmonella Tx
Treatment indicated only for patients who are ≤3 months
of age, toxic, has disseminated disease, or S. typhi
Shigela Tx
Trimethoprim/sulfamethoxazole
Diarrhea caused by person to person sprad
Shigella, Campylobacter
Tx of Campylobacter
Self-limiting; erythromycin speeds recovery and reduces
carrier state; recommended for severe disease
Yersinia enterocolitica Tx
No antibiotic therapy; aminoglycosides plus a third-generation cephalosporin for infants ≤3 months of age or with culture-proven septicemia
Bacteria asstd with food poisoning
Staphylococcus aureus
Tx for Cryptosporidium
Raising CD4 count to normal is best treatment. No proven
therapy (antimicrobial); strong supportive care; may try
rifabutin
What syndrome?
– Pancreatic insufficiency
– Neutropenia
– Malabsorption
Schwachman-Diamond Syndrome
Dx
– Lymph fluid leaks into bowel lumen
– Steatorrhea
– Protein-losing enteropathy
Intestinal lymphangiectasia
Dx
– Osmotic diarrhea
– Acidic stools
Disaccaridase Deficiency
Dx
– Severe fat malabsorption form birth – Acanthocytes – Very low to absent plasma cholesterol, triglycerides, etc.
Abetalipoproteinemia
° Weight, height, and nutritional status is normal, and no fat in stool
° Excessive intake of fruit juice, carbonated fluids, low fat intake usually present in history
Chronic nonspecific diarrhea of infancy
Diarrhea with carbohydrates—__________
CHO malabsorption
Weight loss and stool with high fat—______
think malabsorption
Dxtics for fat malabsorption
° Most useful screening test is stool for fat ______
° Confirm with ______
(Sudan red stain)
72-hour stool for fecal fat (gold standard for steatorrhea)
Steatorrhea is most prominent with _______ all require a
sweat chloride
pancreatic insufficiency;
Serum _______ is also a good screen (reflects residual pancreatic function)
trypsinogen
CHO malabsorption—screen with ______
reducing substances in stool (Clinitest