MICROBIOLOGY GOOD REVISION
QUESTIONS AND THEIR ANSWERS
ON PARASITOLOGY
1. Microscopic examination of peripheral blood may be
diagnostic for infection with each of the following parasites
EXCEPT:
A. Plasmodium vivax
B. Trypanosoma cruzi
C. Trichinella spiralis
D. Wuchereria bancrofti
C
2. In hookworm cases where progressive anemia is present,
what additional test procedure should be performed to
determine infection in stool specimens?
A. Permanently stained smear
B. Modified acid-fast stain
C. Concentration technique
D. Wet mount preparation
C
3. All of the organisms are listed with a common site of
recovery for that parasite, EXCEPT:
,A. Giardia lamblia - duodenal contents
B. Trichuris trichuria - stool
C. Plasmodium falciperum - ocular secretions
D. Paragonimus westermanni - sputum
C
4. The specimen of choice for the recovery of Entamoeba
hartmanni is:
A. CSF
B. Genital discharge
C. Stool
D. Urine
C
5. Which of the following is the correct order when performing
a permanent stained smear of a stool specimen?
A. 100% ethanol; 70% ethanol/D'Antoni's iodine; 70% ethanol;
Trichrome stain; 90% ethanol; Xylene
B. 90% ethanol; 70% ethanol/D'Antoni's iodine; 70% ethanol;
Trichrome stain; 100% ethanol; Xylene
C. 70% ethanol/D'Antoni's iodine; 70% ethanol; Trichrome
stain; 90% ethanol;100% ethanol; Xylene
D. 70% ethanol/D'Antoni's iodine; 100% ethanol; 90% ethanol;
Trichrome stain; 70% ethanol; Xylene
,C
6. Stool is the specimen of choice for the recovery of which of
the following parasites?
A. Trichinella spiralis
B. Diphyllobothrium latum
C. Plasmodium falciparum
D. Schistosoma haematobium
B
7. Which of the following adult parasites are found in the
lungs and the eggs are most commonly recovered in sputum
samples?
A. Fasciola spp.
B. Clonorchis sinensis
C. Opisthorchis spp.
D. Paragonimus spp.
D
8. At an outpatient clinic, a patient comes in with an order for
stool ova and parasites (O & P). How should this specimen be
collected and transported for best test results?
A. The specimen should be collected in a sterile container and
transported to the laboratory by the end of the shift.
B. A small sample of the specimen should be applied to the
, two small windows of the Guaiac smear test card and sent to
the laboratory immediately.
C. The specimen should be immediately placed in recipients
containing polyvinyl alcohol (PVA) or formalin and transported
to the laboratory.
D. A rectal swab sent immediately to the laboratory will
produce the most reliable test results.
C
9. The ideal stool sample for parasitic examination is one that
is freshly collected and submitted to the laboratory at:
A. Refrigerator temperature (2° C)
B. Incubation temperature (37° C)
C. A temperature of -70° C
D. Room temperature (approximately 22° C)
D
10. What is the optimal specimen type to diagnose a Naegleria
fowleri infection?
A. Whole blood sample
B. Water sample
C. Stool sample
D. Cerebrospinal fluid(CSF) sample
D
QUESTIONS AND THEIR ANSWERS
ON PARASITOLOGY
1. Microscopic examination of peripheral blood may be
diagnostic for infection with each of the following parasites
EXCEPT:
A. Plasmodium vivax
B. Trypanosoma cruzi
C. Trichinella spiralis
D. Wuchereria bancrofti
C
2. In hookworm cases where progressive anemia is present,
what additional test procedure should be performed to
determine infection in stool specimens?
A. Permanently stained smear
B. Modified acid-fast stain
C. Concentration technique
D. Wet mount preparation
C
3. All of the organisms are listed with a common site of
recovery for that parasite, EXCEPT:
,A. Giardia lamblia - duodenal contents
B. Trichuris trichuria - stool
C. Plasmodium falciperum - ocular secretions
D. Paragonimus westermanni - sputum
C
4. The specimen of choice for the recovery of Entamoeba
hartmanni is:
A. CSF
B. Genital discharge
C. Stool
D. Urine
C
5. Which of the following is the correct order when performing
a permanent stained smear of a stool specimen?
A. 100% ethanol; 70% ethanol/D'Antoni's iodine; 70% ethanol;
Trichrome stain; 90% ethanol; Xylene
B. 90% ethanol; 70% ethanol/D'Antoni's iodine; 70% ethanol;
Trichrome stain; 100% ethanol; Xylene
C. 70% ethanol/D'Antoni's iodine; 70% ethanol; Trichrome
stain; 90% ethanol;100% ethanol; Xylene
D. 70% ethanol/D'Antoni's iodine; 100% ethanol; 90% ethanol;
Trichrome stain; 70% ethanol; Xylene
,C
6. Stool is the specimen of choice for the recovery of which of
the following parasites?
A. Trichinella spiralis
B. Diphyllobothrium latum
C. Plasmodium falciparum
D. Schistosoma haematobium
B
7. Which of the following adult parasites are found in the
lungs and the eggs are most commonly recovered in sputum
samples?
A. Fasciola spp.
B. Clonorchis sinensis
C. Opisthorchis spp.
D. Paragonimus spp.
D
8. At an outpatient clinic, a patient comes in with an order for
stool ova and parasites (O & P). How should this specimen be
collected and transported for best test results?
A. The specimen should be collected in a sterile container and
transported to the laboratory by the end of the shift.
B. A small sample of the specimen should be applied to the
, two small windows of the Guaiac smear test card and sent to
the laboratory immediately.
C. The specimen should be immediately placed in recipients
containing polyvinyl alcohol (PVA) or formalin and transported
to the laboratory.
D. A rectal swab sent immediately to the laboratory will
produce the most reliable test results.
C
9. The ideal stool sample for parasitic examination is one that
is freshly collected and submitted to the laboratory at:
A. Refrigerator temperature (2° C)
B. Incubation temperature (37° C)
C. A temperature of -70° C
D. Room temperature (approximately 22° C)
D
10. What is the optimal specimen type to diagnose a Naegleria
fowleri infection?
A. Whole blood sample
B. Water sample
C. Stool sample
D. Cerebrospinal fluid(CSF) sample
D
