ASCP Parasitology Exam Questions With
Correct Answers
What is the diagnostic procedure for Echinococcus granulosus? -
| | | | | | | | |
ANSWER✔✔✔-The microscopic examination of hydatid fluid aspirated | | | | | | |
from a cyst.
| |
What is the diagnostic procedure for Onchocerca volvulus? -
| | | | | | | | |
ANSWER✔✔✔-Examination of skin snips. | | |
What is the diagnostic procedure for Schistosoma haematobium? -
| | | | | | | | |
ANSWER✔✔✔-Examination of urine sediment. | | |
Charcot-Leyden crystals in stool may be associated with an immune
| | | | | | | | | |
response and are thought to be formed from the breakdown products
| | | | | | | | | | |
of what cell? - ANSWER✔✔✔-Eosinophils.
| | | |
How is Trypanosoma brucei rhodesiense transmitted? - ANSWER✔✔✔-
| | | | | | |
By the bite of the tsetse fly.
| | | | | |
Infection with Giardia lamblia is often associated with: - ANSWER✔✔✔-
| | | | | | | | |
Ingestion of water contaminated with cysts.
| | | | |
,Upon examination of stool material for Cystoisospora belli, one would
| | | | | | | | | |
expect to see: - ANSWER✔✔✔-Oocysts that are modified acid fast
| | | | | | | | | |
variable.
What is the best technique to identify Dientamoeba fragilis in stool? -
| | | | | | | | | | | |
ANSWER✔✔✔-Trichromatic stained smear. | | |
Because there is no known cyst form for Dientamoeba fragilis.
| | | | | | | | |
Entamoeba gingivalis - ANSWER✔✔✔-Known to be an inhabitant of the
| | | | | | | | | |
mouth and is characterized by morphology that resembles Entamoeba
| | | | | | | | |
histolytica/E.dispar. However, Entamoeba gingivalis tends to ingest
| | | | | | |
P.M.N's whereas Entamoeba histolytica/E.dispar does not.
| | | | |
What organism causes primary amoebic meningoencephalitis? -
| | | | | | |
ANSWER✔✔✔-Naegleria fowleri. |
What are the characteristics of the rhabditiform-noninfective-larvae of
| | | | | | | |
Strongyloides stercoralis? - ANSWER✔✔✔-Short buccal capsule and
| | | | | | |
large genital primordium.
| |
Visceral larva migrants is associated with what parasitic organism? -
| | | | | | | | | |
ANSWER✔✔✔-Toxocara. |
, Toxocara species are the cause of visceral larva migrants and occur
| | | | | | | | | | |
when humans accidentally ingest the infective eggs of the dog or cat
| | | | | | | | | | | |
ascarid. The larvae migrate through the deep tissues, including the eye.
| | | | | | | | | |
What are visceral larva migrans? - ANSWER✔✔✔-A condition in
| | | | | | | | |
humans caused by the migratory larvae of certain nematodes, humans
| | | | | | | | | |
being a dead end host.
| | | | |
These nematodes can infect but not mature in humans and after
| | | | | | | | | | |
migrating through the intestinal wall, travel with the blood stream to
| | | | | | | | | | |
various organs where they cause inflammation and damage.
| | | | | | |
Balantidium coli. - ANSWER✔✔✔-Not common in the United States.
| | | | | | | | |
It can cause watery diarrhea in humans and is associated with pigs.
| | | | | | | | | | | |
It is the largest of the intestinal Protozoa.
| | | | | | |
What method is used to diagnosis Toxoplasmosis? - ANSWER✔✔✔-
| | | | | | | |
Serology.
Examination of 24 hour unpreserved urine specimen is sometimes
| | | | | | | | |
helpful in the recovery of what parasitic organism? - ANSWER✔✔✔-
| | | | | | | | |
Schistosoma haematobium eggs. | | |
S.haematobium blood flukes reside in the veins over the bladder. When| | | | | | | | | | |
eggs are passed from the body they are found in the urine.
| | | | | | | | | | |
Correct Answers
What is the diagnostic procedure for Echinococcus granulosus? -
| | | | | | | | |
ANSWER✔✔✔-The microscopic examination of hydatid fluid aspirated | | | | | | |
from a cyst.
| |
What is the diagnostic procedure for Onchocerca volvulus? -
| | | | | | | | |
ANSWER✔✔✔-Examination of skin snips. | | |
What is the diagnostic procedure for Schistosoma haematobium? -
| | | | | | | | |
ANSWER✔✔✔-Examination of urine sediment. | | |
Charcot-Leyden crystals in stool may be associated with an immune
| | | | | | | | | |
response and are thought to be formed from the breakdown products
| | | | | | | | | | |
of what cell? - ANSWER✔✔✔-Eosinophils.
| | | |
How is Trypanosoma brucei rhodesiense transmitted? - ANSWER✔✔✔-
| | | | | | |
By the bite of the tsetse fly.
| | | | | |
Infection with Giardia lamblia is often associated with: - ANSWER✔✔✔-
| | | | | | | | |
Ingestion of water contaminated with cysts.
| | | | |
,Upon examination of stool material for Cystoisospora belli, one would
| | | | | | | | | |
expect to see: - ANSWER✔✔✔-Oocysts that are modified acid fast
| | | | | | | | | |
variable.
What is the best technique to identify Dientamoeba fragilis in stool? -
| | | | | | | | | | | |
ANSWER✔✔✔-Trichromatic stained smear. | | |
Because there is no known cyst form for Dientamoeba fragilis.
| | | | | | | | |
Entamoeba gingivalis - ANSWER✔✔✔-Known to be an inhabitant of the
| | | | | | | | | |
mouth and is characterized by morphology that resembles Entamoeba
| | | | | | | | |
histolytica/E.dispar. However, Entamoeba gingivalis tends to ingest
| | | | | | |
P.M.N's whereas Entamoeba histolytica/E.dispar does not.
| | | | |
What organism causes primary amoebic meningoencephalitis? -
| | | | | | |
ANSWER✔✔✔-Naegleria fowleri. |
What are the characteristics of the rhabditiform-noninfective-larvae of
| | | | | | | |
Strongyloides stercoralis? - ANSWER✔✔✔-Short buccal capsule and
| | | | | | |
large genital primordium.
| |
Visceral larva migrants is associated with what parasitic organism? -
| | | | | | | | | |
ANSWER✔✔✔-Toxocara. |
, Toxocara species are the cause of visceral larva migrants and occur
| | | | | | | | | | |
when humans accidentally ingest the infective eggs of the dog or cat
| | | | | | | | | | | |
ascarid. The larvae migrate through the deep tissues, including the eye.
| | | | | | | | | |
What are visceral larva migrans? - ANSWER✔✔✔-A condition in
| | | | | | | | |
humans caused by the migratory larvae of certain nematodes, humans
| | | | | | | | | |
being a dead end host.
| | | | |
These nematodes can infect but not mature in humans and after
| | | | | | | | | | |
migrating through the intestinal wall, travel with the blood stream to
| | | | | | | | | | |
various organs where they cause inflammation and damage.
| | | | | | |
Balantidium coli. - ANSWER✔✔✔-Not common in the United States.
| | | | | | | | |
It can cause watery diarrhea in humans and is associated with pigs.
| | | | | | | | | | | |
It is the largest of the intestinal Protozoa.
| | | | | | |
What method is used to diagnosis Toxoplasmosis? - ANSWER✔✔✔-
| | | | | | | |
Serology.
Examination of 24 hour unpreserved urine specimen is sometimes
| | | | | | | | |
helpful in the recovery of what parasitic organism? - ANSWER✔✔✔-
| | | | | | | | |
Schistosoma haematobium eggs. | | |
S.haematobium blood flukes reside in the veins over the bladder. When| | | | | | | | | | |
eggs are passed from the body they are found in the urine.
| | | | | | | | | | |
