Intestinal Nematodes - ASCARIS LUMBRICOIDES Flashcards
1
Q
Giant Roundworm/Ascariasis
MC and largest nematode
soil transmitted helminth (STH)
A
Ascaris lumbricoides
- SMALL intestine
- ingestion of embryonated eggs
2
Q
Diagnostic test for Ascaris
A
Direct Fecal Smear
Kato-Katz technique
3
Q
Pathogenesis of Ascaris
A
Major damage occurs during LARVAL MIGRATION
LUNGS - principal site of tissue reaction
*inflammation w/ EOSINOPHILIC exudate occurs
heavy worm burden – MALNUTRITION
4
Q
LUNG PHASE
A
L3 – L5
LOEFFLER’S SYNDROME - hypersensitivity pneumonitis
5
Q
INTESTINAL PHASE
A
L5 – ADULT WORMS
acute intestinal obstruction
Malabsorption syndrome
nutrient deficiencies
6
Q
WANDERING WORMS
A
d.t. erratic behavior of adult worms
HEPATOBILIARY ASCARIASIS
PANCREATITIS, APPENDICITIS
7
Q
Treatment of Ascariasis
A
Albendazole
8
Q
cough, eosinophilia and pulmonary infiltrates
A
LOFFLER SYNDROME
