2.3.1 Helminths (Nematodes: Tissue and Blood)

Question 1

Nematodes: Tissue and blood

Infective stage to intermediate host:

Answer 1

Microfilaria

Question 2

Nematodes: Tissue and blood

Infective stage to Definitive Host:

Answer 2

Filariform larva (L3)

Question 3

Nematodes: Tissue and blood

Diagnostic stage:

Answer 3

Microfilaria

Question 4

Nematodes: Tissue and blood

Adult worms spp. that are found in Lymphatics?

Answer 4

Wuchereria and Brugia (Both mosquito)

Question 5

Nematodes: Tissue and blood

Adult worms spp. that are found in Subcutaneous tissues?

Answer 5

Loa loa and Onchocerca

Question 6

Intermediate host for Wuchereria and Brugia

Answer 6

Anopheles

Question 7

Other IH for nematodes in tissue and Blood:

Aedes, Culex
Mansonia
Chrysops
Tabanid
Mango fly
Simulian black fly
Cyclops (Crustaceans)

Question 8

Life cycle of Microfilaria

Microfilaria develops into ______ in arthropods which then enters to the skin from a bite then L3 becomes adult in _____

Answer 8

L3 (Filariform larva)

Man

Question 9

Pathology:

Elephantiasis of LOWER extremities

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 9

a

Question 10

Pathology:

Calabar swelling/fugitive syndrome, expatriate syndrome, can be seen in EYES

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 10

c

Question 11

Pathology:

River blindness

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 11

d

Question 12

Pathology:

Elephantiasis of UPPER extremities

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 12

b

Question 13

Vector:

Mansonia Anopheles

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 13

b

Question 14

Vector:

Simulian black fly

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 14

d

Question 15

Vector:

Chrysops/tabnid/mango fly

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 15

c

Question 16

Vector:

Aedes anopheles Culex

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 16

a

Question 17

Specimen:

Skin nips, jerky movement microfilaria

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 17

d

Question 18

Specimen:

blood

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 18

a,b,c

Question 19

Microfilaria:

Sheathed, nuclei continues up to the tip

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 19

c

Question 20

Microfilaria:

Unsheathed, no nucleus in tail

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 20

d

Question 21

Microfilaria:

Sheathed, 2 separate nuclei in tail

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 21

b

Question 22

Microfilaria:

Sheathed, Absent nuclei in tail

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 22

a

Question 23

Periodicity:

Non-periodic

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 23

d

Question 24

Periodicity:

Nocturnal (10pm -1 am)

a. Wuchereria bancrofti
b. Brugia malayi
c. Loa loa
d. Onchocerca volvulus

Answer 24

a

Question 25

Periodicity: Diurnal (10 am to 12 pm) a. Wuchereria bancrofti b. Brugia malayi c. Loa loa d. Onchocerca volvulus

Answer 25

c

Question 26

Periodicity: Subperiodic nocturnal a. Wuchereria bancrofti b. Brugia malayi c. Loa loa d. Onchocerca volvulus

Answer 26

b

Question 27

Also known as Guinea Worm, fiery serpent of Israelites or serpentine worm

Answer 27

Dracunculus medinensis

Question 28

Infective stage of Dracunculus medinensis?

Answer 28

Larva

Question 29

MOT of Dracunculus medinensis?

Answer 29

Ingestion of CRUSTACEANs with larva

Question 30

Final host for Dracunculus medinensis

Answer 30

Dogs, pigs, rats, man

Question 31

Intermediate host for Dracunculus?

Answer 31

Copepods (Cyclops)

Question 32

Pathology for D. medinensis is "People with _____________ disease (GWD)

Answer 32

Guinea worm

Question 33

Complication of D. medinensis includes: Cellulitis abscesses Sepsis Septic arthritis Contractures T or F

Answer 33

T

Question 34

D. medinensis causes LOCK JAW / _________

Answer 34

Tetanus

Question 35

Treatment for D. medinensis?

Answer 35

None (Manual removal)

Question 36

Also known as Canton China

Answer 36

Angiostrongylus cantonensis

Question 37

What is the common name for Angiostrongylus cantonensis

Answer 37

Rat lung worm

Question 38

What is the infective stage for Angiostrongylus cantonensis?

Answer 38

L3 (filariform

Question 39

MOT of Angiostrongylus cantonensis?

Answer 39

Ingestion of Filariform

Question 40

Final host for Angiostrongylus cantonensis

Answer 40

Rat

Question 41

Intermediate host for Angiostrngylus cantonensis a. Copepods b. Achatina Fulica c. Achatina canis d. Achatina brasiliensis

Answer 41

b

Question 42

Humans are considered wha type of host for Angiostrongylus contanensis

Answer 42

Accidental

Question 43

Habitat of A. cantonensis in the body

Answer 43

CSF

Question 44

Diagnostic stage for A. cantonensis?

Answer 44

Larva in CSF

Question 45

Angiostrongylus cantonensis Morphology: Male adult: ______ - shaped copulatoru bursa Female adult Milky white uterine tubules (___________ appearance)

Answer 45

Kidney Barber's pole appearance

Question 46

Angiostrongylus cantonensis Pathology: Mental retardation, Eosiniphilic meningoencephalitis T or F

Answer 46

T

Question 47

Known as the "The Great Imitator" or Trchinal worm

Answer 47

Trichinella spiralis

Question 48

Infective stage for Trichinella spiralis?

Answer 48

Encysted larvae

Question 49

MOT for Trichinela spiralis?

Answer 49

Ingestion of encysted larva from raw meet

Question 50

Final host and intermediate host for Trichinella spiralis?

Answer 50

Dogs, Pigs, Rats, Man

Question 51

Habitat for Trichinella spiralis: Larva: Adult:

Answer 51

Larva: Striated muscle Adult: Intestine

Question 52

Dx stage for Trichinella spiralis Encysted larve in __________

Answer 52

Striated muscle

Question 53

Trichinella spiralis pathology includes: - Muscle paralysis - Muscle dystrophy - Muscle calcification T or F

Answer 53

T

Question 54

Eggs or Larva are not routinely recovered in stool and not routinely used to diagnose infection for Trichinalis spiralis T or F

Answer 54

T

Question 55

Also known as Dog heart worm

Answer 55

Dirofilaria immitis

Question 56

Dirofilaria immitis infects: (Organ) Dogs: Human:

Answer 56

Dogs: Heart Human: Lungs

Question 57

Human infection for Dirofilaria immitis in the lungs is called?

Answer 57

Coin lesion