Lumen/Atrial Flagellates Flashcards
Pear shaped flagellated trophozoite
Cysts with four nuclei, suction disc
Duodenal: Malabsorption
Steatorrhea
Flatulence
Giardia lamblia/intestinalis
Cyst -> human -> trophozoites in duodenum -> cyst -> stool
Interfere with absorption of fat and protein
Chronic diarrhea with stool that contain large amounts of mucus and fat no blood
Giardia lamblia/intestinalis
Infection with ingestion of contaminated food and water
Excyst and develop in duodenum
Trophozoites passed in stool but they do not survivate in the environment
Giardia lamblia/intestinalis
Disgnostic form of Giardia
Cyst
Symmetrically pear shaped
Rounded anteriorly and pointed posteriorly
Convex dorsally and flat ventrally
Ventral sucking disc
Giardia lamblia
Falling leaf motility
Appearance of smiling face with prominent eyes of owl eye
Giardia lamblia
Owl eye nuclei
Reed sternberg cell
Hodgkin Lymphoma
Backpackers diarrhea
Giardia lamblia
Cryptosporidium
Causes villous atrophy
Malabsorption and lactose intolerance
Steatorrhea
Abdominal distention
Abdominal cramps
Flatulence
Mastigophora
Flagellate
Giardia lamblia
Giardia Dx
Routine fecalysis
Duodenal aspirate
Entero-test String test / Enterocapsule test (2nd part of duodenum)
Giardia Tx
Quinacrine HCl Metronidazole Tinidazole Albendazole Paromomycin
Giardiasis CDC first line drug
Metronidazole
Tinidazole
Nitazoxanide
Alternative
Paromomycin
Quinacrine
Furazolidone
Giardia Dx
Trophozoite
Cysts
Severe protracted non invasive diarrhea in immunocompromised patients HIV
Fecal oral transmission
Trophozoites attach to small intestine but do not invade
Cryptosporidium
Stain for cryptosporidium
Kinyoun stain
Modified acid fast
