Trichinella Spiralis

Question 1

Common name:

Answer 1

Trichina worm

Question 2

Main habitat

Answer 2

Small intestine, skeltal muscles

Question 3

Rarely seen in —— and any ——- because they are lodged in the ——?

Answer 3

Stool; materials; muscle

Question 4

First found in the muscle of patient that was autopsied by

Answer 4

Peacock in London 1828

Question 5

first investigator to describe and name
the insisted larvae

Answer 5

Richard owen 1835

Question 6

3 sub sp that infects man

Answer 6

T. s spiralis
T.s nativa
T. s nelsoni

Question 7

T. s spiralis is found in?

Answer 7

Temperate regions

Question 8

T. s nativa is found in?

Answer 8

Arctic region

Question 9

T. s nelsoni is found in?

Answer 9

Africa

Question 10

Disease caused by T. spiralis?

Answer 10

Trichinosis
Trichiniasis
Trichinellosis

Question 11

Distinguishing characteristis of larvae?

Answer 11

spear-like burrowing tip at its tapering anterior end

Question 12

the digestive tract of a mature larvae insisted in a muscle fiber
resembles that of an adult worm

Answer 12

Trichinella spiralis spi

Question 13

Stage of T. spiralis that is rarely seen in stool or any material

Answer 13

Adult stage

Question 14

Phase! Small intestinal edema and inflammation

Answer 14

Intestinal phasw

Question 15

Can also be known as the incubation/ intestinal invasion

Answer 15

INTESTINAL PHASE

Question 16

——in severe case can also be found as well as —— and ——

Answer 16

Splenomegaly; gastric and intestinal hemorrhages

Question 17

Aka larval migration and muscle invasion

Answer 17

Migration phase

Question 18

Happens up to the 6th week of infection with the following signs
and symptoms:

Answer 18

Migration phase

Question 19

Edema of the eyes and face

Answer 19

Migration phasw

Question 20

Eosinophilia (15-40% for 1 month)

Answer 20

Migration phasw

Question 21

What week does it cause death?

Answer 21

4th to 8th week

Question 22

Phase: Acute local inflammation

Answer 22

Muscular phase

Question 23

Edema and pain of musculature

Answer 23

Muscular phasw

Question 24

Edema and pain of musculature
 Larval encystation

Answer 24

Muscular phasw

Question 25

In how many days after larva, invasion does muscle fibers becomes edematous and spindle shape

Answer 25

3-4 days

Question 26

Basophilic degeneration

Answer 26

Muscular phase

Question 27

Predominatiing symptoms

Answer 27

EOMSG :  Eosinopjilia  Orbital edema  Muscular pain and tendernedd  Shallow and painful breathing  General weakness

Question 28

Fever, weakness, pain and other symptoms start to abate.

Answer 28

Encapsulation phase

Question 29

Full recovery is expected in this phase since trichinellosis is a self-limiting disease.

Answer 29

Encapsulation phase

Question 30

What signs may arise that can lead to brain damage and may persist?

Answer 30

Protean neurological sign

Question 31

Phase: signs may arise that can lead to brain damage and may persist.

Answer 31

Encapsulation phase

Question 32

Most definitive muscle exam

Answer 32

Muscle bipsy

Question 33

Muscle biopsy digested with

Answer 33

Pepsin hydrochloride

Question 34

Samples should be taken at

Answer 34

3rd or 4th week of infection

Question 35

Use antigen preparation of Trichinella larva  Observe after 30 minutes  (+) result: large elevated swelling at the site of injection

Answer 35

BIT BACHMAN INTRADERMAL TEST

Question 36

This is done when meat is suspected of harboring the existed larvae of trichinella and feeding the meat to the albino rats.

Answer 36

Beck’s xenodiagnosis

Question 37

Observation is done 14 days after inoculation for the presence of female worm in the duodenum, and larvae in the muscles of the experimental animal.

Answer 37

Beck’s xenodiagnosis

Question 38

This would provide the confirmatory diagnosis but the problem with this one is that there is a late rise of the antibody titers which usually commences 3-4 weeks after a light infection.

Answer 38

Serodiagnosis

Question 39

Elimination of encysted larva in hogs through freezing at

Answer 39

-30 degrees celsius for 24 hr

Question 40

Requires 2 hosts in order to complete the life cycle

Answer 40

Blind alley cycle

Question 41

Infective stagw

Answer 41

Encysted larvae

Question 42

At birth size

Answer 42

80-120um and higly coiled

Question 43

T. spiralis size when it enters the muslce fibers

Answer 43

900-1000um

Question 44

T.spiralis vulva is found at the?

Answer 44

Anterior fifth

Question 45

T.spiralis female can live up to how many days?

Answer 45

30 days

Question 46

T.spiralis female is capable of producing how many larvae in her lifetime?

Answer 46

1500 larvae

Question 47

Cough, pleural pains

Answer 47

Migration phase