Medical Laboratory Scientist Position
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This test is facilitated by Kimberly Ryan for Central Bank Nigeria (CBN) for the recruitment of Medical Laboratory Scientists with specified years of experience. INSTRUCTIONSPlease complete the bio data before proceeding. Please tick ONLY ONE BOX in the spaces provided. Multiple answers in one question WILL NOT be recognised. Please do not refresh the page as you will loose all your already imputed data. You have 60 minutes to answer 60 questions. The test is scheduled to terminate in 60 minutes.
- 1.Ova of parasite Trichuris trichiura has which of type characteristic appearance under the microscope?
- A.
A) Round shape
- B.
B) Oval shape
- C.
C) Spherical shape
- D.
D) Barrel shape
- E.
E) Cylindrical shape
- 2.The following classes of lymphocytes are not infected and destroyed by HIV except
- A.
Monocytes
- B.
Macrophages
- C.
CD 8
- D.
CD 4
- E.
T- Lymphocytes
- 3.Coombs test is the most important laboratory aid for the diagnosis of which of the following diseases?
- A.
Myasthenia gravis
- B.
Autoimmune haemolytic anaemia
- C.
Waldenstroms macroglobulinemia
- D.
Rheumatoid arthritis
- E.
Systemic lupus erythematosus
- 4.The lipoprotein sub-fraction associated with the term "good" cholesterol is:
- A.
Very low density lipoprotein (VLDL)
- B.
Low density lipoprotein (LDL)
- C.
High density lipoprotein (HDL)
- D.
Pre beta lipoprotein (PBL)
- 5.The following markers are usually present in a hepatitis B carrier with chronic active hepatitis except
- A.
HbeAg
- B.
Anti-HBc IgG
- C.
Anti-HBc IgM
- D.
HBV-DNA
- E.
HbsAg
- 6.Which statement is true?
- A.
S. haematobium is associated with pus in the urine
- B.
Ova of S. haematobium has lateral spine
- C.
Ova of S. hamatobium has terminal spine
- D.
Tadpoles are the intermediate host of S. haematobium
- E.
schistosoma japonicum infest the bladder more often
- 7.Specific organisms that are considered strict anaerobes include:
- A.
E. coli and Streptococcus pneumoniae
- B.
Bacteroides and Klebsiella
- C.
Peptostreptococcus and Nocardia
- D.
None of the above
- E.
All of the above
- 8.What method is used to collect a specimen when Enterobius vermicularis is suspected?
- A.
Tissue biopsy
- B.
Venipuncture
- C.
Cellophane tape method
- D.
PVA-preserved stool
- 9.The blood level of total cholesterol concentration recommended by the World Health Organization is:
- A.
Above 250mg/dl in Africans
- B.
Less than 225 mg/dl in Caucasians
- C.
Less than 150 mg/dl in Chinese
- D.
More than 200mg/dl in Asians
- E.
None of the above
- 10.Diphyllobothrium latum causes which of the following diseases?
- A.
Cysticercosis
- B.
Echinococcosis
- C.
Hydatididossis
- D.
Diphyllobothriasis
- 11.The accole form of plasmodium parasite is seen on blood film on:
- A.
The Centre of the red blood cell
- B.
The periphery of the red blood cell
- C.
The nucleus of the red bold cell
- D.
Cytoplasm of the red blood cell
- 12.All are trematodes except
- A.
Fasciolopsis buski
- B.
Enterobius vermicularis
- C.
Diphyllobotrium latum
- D.
Hymenolepsis diminuta
- E.
Schistosoma heamatobium
- 13.Spherocytes in the blood film are not a feature of which of the following excep
- A.
Recticulocytosis
- B.
Glucose-6-phosphate dehydrogenase
- C.
Thallasaemia
- D.
Auto-immune heamolytic anaemia
- E.
Megaloblastic anaemia
- 14.A feature of extravascular haemolysis is
- A.
Haemosiderin in urine
- B.
Jaundice
- C.
Albuminuria
- D.
Haemoglobin in urine
- 15.Which of these is true of B-lymphocytes?
- A.
They are all short –lived
- B.
They secrete surface immunoglobulin
- C.
They are both helper and killer cells
- D.
They are similar to lymphocytes in infectious mononucleosis
- 16.In peripheral blood film examination, band form is associated with
- A.
P. falciparum
- B.
P.malariae
- C.
P. vivax
- D.
P.ovale
- 17.The best method to diagnose malarial parasite in the laboratory is examination of
- A.
Thin film only
- B.
Thick film only
- C.
Both thick and thin films
- D.
Rapid Diagnostic Test
- 18.Urinalysis result that confirms the presence of Nitrites and leucocytes is indicative of
- A.
Leukocytosis
- B.
UTI
- C.
Viral infection
- D.
Parasitic infection
- E.
None of the above
- 19.Complete haemogram aims at screening for various disease states which include
- A.
Anemia
- B.
Leukemia
- C.
Inflammatory processes
- D.
All of the above
- 20.Ebola Virus Disease (EVD), was first discovered in
- A.
1934
- B.
1976
- C.
1988
- D.
1914
- 21.The following tests are useful in monitoring an HIV patient except
- A.
HIV Quantiferon
- B.
CD4 count, Viral Load
- C.
Urea, FBC creatinine
- D.
LFT
- 22.The following are activities that take place at the pre-analytical stage of a test procedure, except
- A.
Bringing reagents to room temperature
- B.
Bringing samples to room temperature
- C.
Recording test results
- D.
Identify samples with their manifests
- 23.The Ebola virus disease can be transmitted through contamination from which of the following?
- A.
Urine
- B.
Blood
- C.
Semen
- D.
Sweat
- E.
All of the above
- 24.In gram’s stain, the steps involved are
- A.
5
- B.
10
- C.
13
- D.
8
- 25.Which of these is a colour code for entry of laboratory reagent /commodity on tally cards in the store?
- A.
Red
- B.
Blue
- C.
Green
- D.
Purple
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