Para Lec - Hookworms Flashcards
Ancylostoma duodenale
common name
Old World Hookworm
Necator americanus
common name
New World Hookworm
Dental Pattern AD
2 pairs of teeth
Dental Pattern NA
semilunar cutting plates
Bursa AD
trigiditate
Bursa NA
bidigitate
Spicule AD
plain, bristle-like
Spicule NA
barbed, fused
Host [body part] AD
small intestine
Host [body part] NA
small intestine
diagnostic stage AD
ova
diagnostic stage NA
ova
infective stage AD
L3
infective stage NA
L3
MoT AD
Skin penetration, ingestion
MoT NA
purely percutaneous
morphology of eggs
Thin-shelled
2-8 cell stages (blastomeres)
function of teeth
for attachment
bursa is only found in m or f
males
location of bursa, posterior or anterior
p
found inside bursa
dorsal rays
arises from the bursa
spicule
name for the egg cell stages of hookworms
blastomeres
with or w/o species identification with eggs?
without
how are egg reported
hookworm eggs
how to identify species of hookworms
adult stages
other MoT of AD
breastfeeding
type of soil preferred by hookworms
sandy, warm moist
where are infection of hookworms commonly identified
coastal areas
initial rxn to larval penetration
itchiness
how many days does it take to transform from egg to filariform
5-7 days
infective stage, closed mouth, sheathed
filariform
IS, open mouth, unsheathed
rhabditiform
what type of hookworm can penetrate the deepest vascularized layer
human hookworms
lab test for hookworms [2]
stool exam
harada mori technique
when to culture using HMT
when there is low parasitemia but with eggs found
why kato techniques not ideal for hookworm
glycerol is a clearing agent, more than 30 min of exposure to this will make the hookworm egg transparent
clinical features/diseases due to larva [3]
ground itch, dew itch
creeping eruption
pneumonitis [Wakana Disease]
clinical features/diseases due to adult [4]
abdominal discomfort
IDA
Stool with occult blood
extreme fatigue, iQ loss
treatment for hookworms
albendazole x 1 dose
virulence factors [4]
secretions: anticoagulants, hemolysin, hemoglobinases
change of position every hour
continuous sucking = no coagulation
teeth
physical vf
teeth
eggs laid per day
5, 000 - 20, 000
Ground itch would cause blank in primary infection
Dry cough wheezing
