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Para Retake Flashcards

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1
Q

Which of the Protozoan cyst below often contain chromatoidal bars, which tend to be splinter shaped and irregular?
A. Entamoeba hartmanni
B. Entamoeba histolytica
C. Entamoeba dispar D. Entamoeba coli

A

Entamoeba coli

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2
Q

Which refers to the protozoan parasite of pigs and monkeys
A. Entamoeba polecki
B. Entamoeba moshkoskii
C. Entamoeba hartmanni D. Entamoeba coli

A

Entamoeba polecki

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3
Q

What protozoan parasite whose cytosome is referred to as a “shepherd’s crook” with a lemon or pear shape
A. Retortamonas intestinalis
B. Pentatrichomonas hominis
C. Chilomastix mesnili
D. Enteromonas hominis

A

Chilomastix mesnili

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4
Q

Which protozoan resembles Chilomastix cyst with “bird beak” fibril arrangement
A. Giardia lamblia
B. Trichomonas tenax
C. Dientamoeba fragilis
D. Retortamonas intestinalis

A

Retortamonas intestinalis

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5
Q

Which of the following dimensions in the template used in Kato Katz technique will containing 20 mg of stool
A.9mmx1mm
B.6.5mmx1mm C.6mmx1mm
D. 6.5 mm x 0.5mm

A

6.5 mm x 0.5mm

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6
Q

Which nucleus is responsible for reproduction in the trophozoite stage of the Balantidium coli?
A. Micronucleus
B. Macronucleus
C. Both A and B D. Neither

A

Macronucleus

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7
Q

Which of the following is not a characteristic of Dientamoeba fragilis?
A. Generally has 2 nuclei
B. Circular appearance at rest.
C. Recognized only in liquid/fresh stools D. Generally has 4 nuclei

A

Generally has 4 nuclei

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8
Q

What is the treatment of choice for balantidiasis A. Diloxanide furoate
B. Tetracycline
C. Mebendazole
D. Primaquine

A

Tetracycline

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9
Q

A 40 y.o male with HIV, presented with diarrhea of 2 weeks. Acid-fast staining of his stool revealed red-pink doughnut-shaped circular organisms resembling oocysts. What parasite is the possible cause of his diarrhea
A. Balantidium coli
B. Entamoeba histolytica
C. Cryptosporidium hominis D. Toxoplasma gondii

A

Cryptosporidium hominis

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10
Q

“Ground itch” or “dew itch” is a dermatitis caused by which of the following nematodes:
A. Toxocara canis
B. Enterobius vermicularis
C. Necator americanus
D. Strongyloides stercoralis

A

Necator americanus

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11
Q

Long-standing and heavy infection can cause protein-losing enteropathy. Which parasite is responsible for this:
A. Strongyloides stercoralis
B. Ascaris lumbricoides C. Enterobius vermicularis D. Trichinella spiralis

A

Strongyloides stercoralis

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12
Q

Which of the following does not undergo heart- lung migration?
A. Giant intestinal roundworm
B. Hookworm
C. Whipworm
D. Dog roundworm

A

Whipworm

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13
Q

Which of these drugs is used to treat protozoan infection?
A. Mebendazole
B. Metronidazole
C. Albendazole D. Ketoconazole

A

Metronidazole

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14
Q

Nocturnal pruritus is commonly seen in which of the following parasitic infections?
A. Trichuriasis
B. Enterobiasis
C. Giardiasis D. Ascariasis

A

Enterobiasis

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15
Q

All of the following are components of the kato thick technique except?
A. Glycerin
B. Clear cellophane
C. Green cellophane
D. Orcein

A

Orcein

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16
Q

What is the parasite that caused the “Mystery” disease in Compostella valley?
A. Bagsit
B. Pudoc worm
C. Peanut worm D. Seat worm

A

Pudoc worm

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17
Q

What is best way to distinguish Entamoeba histolytica from Entamoeba dispar infection?
A. Microscopy
B. Concentration methods
C. PCR method
D. Kato-Katz method

A

PCR method

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18
Q

Steatorrhea in Giardiasis is caused by what type of diarrhea?
A. Osmotic diarrhea
B. Secretory diarrhea
C. Exudative diarrhea
D. Rapid transit diarrhea

A

Osmotic diarrhea

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19
Q

In the Fischer indole synthesis, from what amino acid is converted in to indoleacetic acid which would finally be a derivative of skatole?
A. Tyrosine
B. Alanine
C. Tryptophan
D. Thiamine

A

Tryptophan

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20
Q

A young patient complains of epigastric pain and dyspnea. Upon observation the patient had yellowish sclerae. The patient’s stool was observed as clay colored. What parasitic infection could have caused the patient’s condition?
A. Biliary ascariasis
B. IDA due to hookworm infection
C.Rectal prolapse stage 4 caused by whipworm infection
D. Gay Bowel Syndrome caused by Giardia lamblia

A

Biliary ascariasis

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21
Q

Blythe complains of vaginal pruritus after meeting with Ford and upon internal examination, red spots were seen on her cervix which could be likened to a strawberry. What could be the cause of her complaint?
A. Trichomonas vaginalis
B. Trichomonas hominis
C. Trichomonas tenax
D. Pentatrchimonas hominis

A

Trichomonas vaginalis

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22
Q

Pyrantel pamoate is always taken in tandem with albendazole during a helminthic infection. What is the reason for this?
A. It makes albendazole more potent in killing parasites and is thus agonistic
B. It weakens the e􏰀ects of albendazole so that it will not cause serious side e􏰀ects and is thus antagonistic
C. It prevents the nematodes from migrating during
treatment and is thus synergistic
D. None of the choices

A

It prevents the nematodes from migrating during treatment and is thus synergistic

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23
Q

This drug’s mode of action is to inhibit protein synthesis by interacting with the DNA and causes helical DNA structure breakage once it di􏰀uses in to the organism. Identify what drug is stated.
A. Mebendazole
B. Metronidazole
C. Pyrantel pamoate D. Ivermectin

A

Metronidazole

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24
Q

Which of the following diseases does not require an occult blood test?
A. Hemorrhoids
B. Peptic ulcer disease
C. Gastritis
D. Esophagitis

A

Hemorrhoids

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25
A patient came in with painful bowel movements which upon macroscopic examination contained blood and mucus. Patient noted that the physician noted rectal prolapse on physical examination. What is the expected ova description if the cause was parasitic? A. Barrel-shaped, thick-shelled and possess a pair of polar “plugs” at each end B. Peanut- or barrel-shaped, with striated shells, flattened ends, and prominent bipolar mucoid plugs C. Thin-shelled, ellipsoid eggs which rapidly embryonate D. It is not a manifestation of a parasitic infection
Barrel-shaped, thick-shelled and possess a pair of polar “plugs” at each end
26
Respiratory distress due to nematode infection is most likely due to what action of the parasites? A. Erratic migration B. Heart lung migration C. Retroinfection D. Cutaneous larva migrans
Heart lung migration
27
What part of the gastrointestinal tract is commonly a􏰀ected by amebae? A. Cecum B. Rectum C. Ileum D. Stomach
Cecum
28
. A stool specimen has been examined one and a half hour after it has been passed. What will not be an expected finding? A. Protozoan cyst B. Protozoan trophozoite C. Nematode larvae D. Nematode ova
Protozoan trophozoite
29
A patient came in with complains of pruritus at night and restlessness at night. The physician requested a scotch tape method. The patient has just taken a bath ten minutes before coming in to the lab. What will be the most likely expected findings of the test? A. Presence of Enterobius ova B. Absence of Enterobius ova C. Presence of Strongyloides ova D. Absence of Strongyloides ova
Absence of Enterobius ova
30
A patient has been requested for an occult blood test. The patient has taken a cocktail of ibuprofen and aspirin a few hours ago for the lightheadedness. What will be the expected results? A. True positive B. True negative C. False positive D. False negative
False positive
31
Pruritic dermatitis is caused by what action of the parasites? A. Flagellar irritation B. Skin penetration C. Mucosal scarring D. Rectal prolapse
Skin penetratio
32
Without the help of PCR for helping di􏰀erentiate Entamoeba histolytica from Entamoeba hartmanni. What else could aid in the di􏰀erentiation of the two species in the laboratory? A. Examine the size of the protozoan present B. Examine the organelles in the parasite D. Send out the specimen for further evaluation C. Check if the patient is manifesting symptoms of a protozoan infection
Check if the patient is manifesting symptoms of a protozoan infection
33
Host that harbors a parasite that can infect someone but has no clinical symptoms
Carrier
34
All are advantages of formalin as fixative EXCEPT I.Easy to prepare II.Long shelf life III.Preserve specimen longer IV.Used to recover trophozoite a. 1&3 b. 2&4 c. 2 only d. 4 only
2 only
35
All are recovered in concentration except I.Cyst II.Larvae III.Helminth eggs IV.Trophozoite a. 1&2 b. 2,3,4 c. 2&4 d. 4 only
2&4
36
Parasite that is detected using Cellophane tape method a. Pinworm b. Societal worm c. Both d. Neither
Both
37
Not a fixative a. Buffered glycerol b. CH2O c. Modified PVA d. SAF
Buffered glycerol
38
The specimen is processed microscopically in DFS. 20 ova/field is seen. How do you write the report? a. few b. moderate c. Many d. No intestinal parasite seen (NIP)
Many
39
Mistaken as yeast cells in direct fecal smear a. Pollen grain b. Fat globules c. RBC d. Starch
RBC
40
Cindy received diarrheic stool, what procedure should she perform a. NSS and kato katz b. Kato thick and kato katz c. Iodine and NSS d. NSS and kato thick
Iodine and NSS
41
Process of trophozoite to cyst a. Excystation b. Encystation
Encystation
42
2 forms of amoeba
Trophozoite and cyst
43
Disintegration of eosinophils
Charcot Leyden crystals
44
E. histolytica
ALA
45
Trichuris trichiura
Rectal Prolapse
46
Capillaria philippensis
Borborygmi
47
Acantamoeba
GAE
48
Ground itch or dew itch
Necator americanus
49
Which nucleus is responsible for reproduction in the trophozoite stage of the Balantidium coli?
Macronucleus
50
Color of rbc in unstained stool
Green
51
Dissolve albuminous materials
40% HCL
52
Best recovery for coccidian
Sheather’s egg floatation
53
Contain information except
Travel history
54
Cause of antidiarrheal drug on protozoan detection
Leaves crystals that may interfere with the test
55
There are a lot of formed stool but a watery stool is passed what will u do?
Process because trophozoites will degrade
56
A refrigerated stool is passed in pathology department what will u do
Reject
57
Somatic Muscle arrangement
Ascaris
58
Found in Cecum and colon and can bury itself in intestinal walls
Trichuris trichura
59
Polymyarian parasite
Ascaris lumbricoides
60
Which among the parasites is transmitted through sexual intercourse?
T. vaginalis and G. lamblia
61
Sauna/hot spring setting, patient died after a few (approx 5) days
Naegleria fowleri
62
What are the characteristics of e.coli
Ingest RBC, Unidirectional
63
I. Giardia duodenalis is the causative agent of beaver fever II. It is from beavers
both true
64
Tumbling motility, no cyst stage. What drug?
Oral metronidazole
65
Causes headache, lethargy. Primary amebic meningoencephalitis
loss of olfactory senses
66
I. Definitive host II. Intermediate host *baliskad sila definition
Both are false
67
What form of an Ascaris lumbricoides is present in the lungs?
Parasite not present in sputum
68
Which of the following preservatives to be employed in trichrome stain?
PVA
69
What is the association between man and Entamoeba coli?
Commensalism
70
I. Eggs of ascaris, trichuris, enterobius are protected in an acidic environment by thick cell II. Cystic cell of entamoeba and giardia is resistant to acidic pH
First is false, second is true
71
What is the most common mode of transmission of giardia lamblia A. Drinking contaminated water B. Eating raw or improperly cooked freshwater fish C. Congenital D. Sexual
Drinking contaminated water
72

MTAP 1 (13 decks)

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