THE UNITED REPUBLIC OF TANZANIA
PRESIDENT'S OFFICE
PUBLIC SERVICE RECRUITMENT SECRETARIAT
SPECIAL RECRUITMENT QUALIFYING TEST, JULY 2021
MINISTRY OF HEALTH (MOH)
LABORATORY SCIENTIST II
THEORY
TIME: 09:30 AM – 12:30 NOON DATE: 24 JULY 2021
INSTRUCTIONS
- This paper consists of ELEVEN (11) printed pages with four sections
- Attempt all questions in every section except SECTION D
- Answer question five (5), six (6) PLUS, any other three in SECTION D
- Carefully follow instruction in each section
- Cellular/Mobile phones are prohibited in the examination room
*FOR OFFICIAL USE
SECTION MARKS ALLOCATED MARKS SCORED MARKER’S SIGNATURE VERIFIER SIGNATURE
SECTION A 25
SECTION B 25
SECTION C 25
SECTION D 25
TOTAL 100
SECTION A: MULTIPLE CHOICE QUESTIONS 25 MARKS
Choose and encircle letter of the most correct answer
-
The vector responsible the for transmission of Malaria is called:
(a)Anopheles
(b)Culex
(c)Culicoides
(d)Simulum
(e)Aedes -
Formal –ether concertation technique comprises of the following materials EXCEPT:
(a)10% formalin
(b)Ether
(c)Funnel
(d)Hospital gauze
(e)Methanol -
In Formal- ether technique, the chemical which extract feacal debrises and form supernatant of the solution is:
(a)10% formalin
(b)Ether
(c)Funnel
(d)Hospital gauze
(e)Methanol -
In diagnosing filarial infections, microfilariae are identified in either tissues or blood, thus blood or tissue filarial worms.Which among the following is a true tissue microfilaria?
(a)Brugia timori
(b)Wucheraria bancrofit
(c)Brugia malayi
(d)Loa loa
(e)Onchocerca volvulus -
Which one is the longest intestinal nematode/round worm:
(a)Trichuris trichiura
(b)Strongyloides stercolaris
(c)Ascaris lumbricoides
(d)Trichnella spilaris
(e)Enterobius vermicularis -
Scotch test (cellulose-tape slide test) is a special diagnostic technique for:
(a)Trichuris trichiura
(b)Strongyloides stercolaris
(c)Ascaris lumbricoides
(d)Trichnella spilaris
(e)Enterobius vermicularis -
Optimum temperature for blood storage in blood donation refrigerator;
(a)\pm 4^\circ C
(b)-4^\circ C
(c)5^\circ C
(d)-5^\circ C
(e)4^\circ C -
The laboratory method for estimating concentration of hemoglobin in the human body which is most preferable in blood donation center to access donor acceptable;
(a)Copper sulphate method
(b)Gram stain method
(c)Taliquest method
(d)Filter paper method
(e)Cyanide method -
What does the reticulocyte count assess?
(a)Inflammation
(b)Response to infection
(c)Erythropoietic activity
(d)Ability of RBCs to form roulex
(e)Platelet function -
The RBC index that is used to describe the average RBC volume is the:-
(a)RDW
(b)MCV
(c)MCH
(d)MCHC
(e)PCV -
Which of the following patients would be considered anemic with a haemoglobin value of 12.5g/dL?
(a)A new born boy
(b)An adult man
(c) A ten-year-old girl
(d) A ten-year-old boy
(e) An adult woman -
Children with sickle cells disease inherited Abnormal hemoglobin (HbSS) from:-
(a) One parent
(b) Both parents
(c) Mother only
(d) Father only
(e) Preferable mother but few genes from father -
Possible blood groups of children born from parents of blood group AB and O are:-
(a) A or B
(b) A, B or O
(c) O
(d) AB or A
(e) B or O -
The purpose of preservatives is to
(a) To prevent decomposition of creatinine to creatine.
(b) Inhibit reduction of urobilinogen.
(c) It inhibits bacteria growth.
(d) Inhibit oxidation of bilirubin
(e) Exhibit oxidation of urobilinogen -
The following are the common preservatives used in clinical chemistry except
(a) Boric acid powder or crystals.
(b) Chloroform.
(c) Toluene
(d) Sodium Azide
(e) E.D.T.A -
One of the following is the hereditary intrahepatic jaundice due to due to decreased hepatic uptake and decreased conjugation
(a) Criger – najar disease
(b) Dubin Johnson
(c) Non haemolytic jaundice
(d) Gilbert disease
(e) Hyperbilirubinaemia -
The complete enzyme-cofactor complex is called
(a) Prosthetic group
(b) Cofactor
(c) Coenzyme
(d) Apoenzyme
(e) Holoenzyme -
The appearance of glucose in the urine
(a) Occurs normally
(b) Is a result of overproduction of angiotensin II
(c) Is a result of hypoglycemia
(d) Occurs when the transport carriers for glucose become saturated
(e) Occurs when an individual consumes a lot of table sugar -
The ability of the body to cope with the standard dose of glucose
(a) Gluconeogenesis
(b) Glycogenolysis
(c) Glucogenolysis
(d) Glucose tolerance
(e) Glycolysis -
The sufficient amount of blood required for blood antibody tests is:
(a) 2-3ml of Venous blood
(b) 5ml of Venous blood
(c) 1ml of Venous blood
(d) 10ml of Venous blood
(e) 4-5ml of Venous blood -
Which among the following is not suitable for pregnancy testing:-
(a) An early morning specimen
(b) Urine collected in a clean container which is free from traces of detergents
(c) Filtered or centrifuged urine
(d) Heavily contaminated or containing blood
(e) Refrigerated urine at 4°C but not stored more than 48 hours. -
Which are Serological tests used for screening of syphilis:
(a) TPHA
(b) VDRL and RPR
(c) Wasserman test
(d) Latex slide agglutination
(e) Coagglutination -
The following can be variation in Gram Stain reactions EXCEPT.
(a) Cell wall damage due to antibiotics therapy
(b) Excessive heat fixation of the smear
(c) Over decolorization of the smear
(d) Preparation of smear from young culture
(e) Use of expired reagents especially Lugol’s iodine -
Which disinfectant is effective against viruses and bacteria?
(a) Hypochlorites
(b) Phenolics
(c) aldehydes
(d) alcohols
(e) Glutaraldehyde -
Which device is used for sterilization by steam under pressure:
(a) Incubator
(b) Oven
(c) Autoclave
(d) Water bath
(e) Hot air oven
SECTION B: MULTIPLE TRUE/FALSE QUESTIONS 25 MARKS
Write the word TRUE for correct statement and word FALSE for incorrect statement in the spaces provided.
- The following causes associated with transfusion reactions
(a) ……TRUE….Circulatory overload
(b) ……FALSE.Phagocytosis
(c) ……TRUE.ABO and Rhesus incompatibility
(d) …TRUE……Anaphylactic shock
(e) …false……..Intensive Antibiotic intravenous administration - Concerning an Isomerase as an enzyme.
(a) …TRUE……Changes the shape within a single molecule
(b) …FALSE….Cleave various bonds by means other than hydrolysis
(c) FALSE………Join two molecules with covalent bonds
(d) …FALSE….Catalyse the hydrolysis of various bonds
(e) TRUE………Catalyse isomerization changes within a single molecule - Concerning compound fixatives
(a) ……T………It is made up of more than one fixing agent
(b) …T………Micro anatomical is a good example of it
(c) F………Formaldehyde is one of the fixative
(d) …T………50:50 Ether-ethanol
(e) ………They are both coagulants and non coagulants - Regarding Brownian movement
(a) FF………Is caused by non-flagellated bacteria
(b) …F………Is due to the molecules which make up a fluid knocking against organism
(c) T………Is on the spot vibratory type motion
(d) T………Bacteria move in different directions
(e) …T………Is used to detect motility - Kinetoplast, undulating membrane and free flagella are morphological characteristic features of the following parasites:
(a) …T………Epimastigote stage of Trypanosomes
(b) …T………Amastigote stage of Trypanosome species
(c) …T………Trypomastigote stage of Trypanosome species
(d) …T………Metacyclic Trypomastigote stage of Trypanasoma species
(e) …T………Promastigote stage of leishmania
SECTION C: CROSS-MATCHING QUESTIONS 25MARKS
Match the items of column A and column B by writing the latter of true answer from Column B to Column A in the spaces provided.
PART ONE 5 MARKS
SN ANSW ER COLUMN A COLUMN B
- Beer-Lambert LawF A. Glycolysis
- 2 - log_{10} %TE B. Jaundiced newborns
- Fat solubleD C. Urine excretion
- Micturition C D. Indirect bilirubin
- Phototherapy B E. Absorbance
F. Spectrophotometry
G. Glucogenolysis
H. Water reabsoption
PART TWO 5 MARKS
SN ANSWER COLUMN A COLUMN B
- Acceptable room temperature rangeD A. Sickle cell screening test
- Iron deficiency anaemiaF B. Megaloblastic anaemia
- Incomplete Ant-DE C. Monocytes
- 2% of sodium metabisulphite A D. 18 - 25^\circC
- Transfusion transmittable infection G E. D^u
F. Microcytic anemia
G. Hepatitis B
H. Platelets
PART THREE 5 MARKS
SN ANSWER COLUMN A COLUMN B
- 10% KOHD A. Cerebral spinal Fluid
- Cryptococcus neoformansA B. Locomotion
- FlagellaB C. Phenol
- Simple stainF D. Fungal hyphae
- Bacillus stearothermophillus H E. Hot air oven
F. Methylene blue
G. Gram positive cocci
H. Autoclave control
PART FOUR 5 MARKS
SN ANSWER
1
2
3
4
5
PART FIVE 5 MARKS
SN ANSWER
1.
2.
3.
4.
5.
SECTION D: SHORT ANSWER QUESTIONS
Answer ALL questions
- List any five (5) detection methods of a coronavirus patient
a. PCR
b. ELISA
c. RAPID CORONA VIRUS
d. RADIAL IMMUNO ASSAY
e. CELL CULTURE - List five (5) morphological features of a coronavirus
a. SPIKE
b. ENVELOPE MEMBRANE
c. GLYCOPROTEIN
d. RNA
e. MEMBRAINE PROTEIN - Mention five (5) quality system essentials.
a. ORGANIZATION
b. PERSONNEL
c. EQUIPMENT
d. DOCUMENT AND RECORDS
e. PURCHASE AND INVENTORY - Mention the reasons why:
It’s great to be Hamdan
a. ______
b. ______
c. ______
It sucks to be anyone else
e. ______
d. ______
- On a scale of 1-10; how irresistible is Hamdan?
Why is it 10?
a. ______
b. ______
c. ______
- Mention five (5) quality indicators
a. TAT
b. REJECTION RATE
c. CUSTOMER SATISFACTION
d. EQUIPMENT DOWN TIME
e. TEMPERATURE CHART
END