Histology and Cytology Theory Paper

(Q1)A water bath for floating sections should be:

a) On through out

b) Painted white inside

c) Regulated above the melting point of the wax

d) Regulated slightly below the melting point of WAX


(Q2) The following are compound fixative EXCEPT:

a) 10 % formal saline

b) Zenkers fluid

c) formaldehyde

d) formalin


(Q3) The following is not involved in tissue processing by use of molten paraffin wax:

a) clearing

b) dehydration

c) infiltration

d) hydration


(Q4) In staining, bluing is achieved by the use of:

a) weak acids

b) basic solutions

c) strong acids

d) hydrochloric acid


(Q5) The indicator for complete dehydration in tissue processing is:

a) anhydrous copper sulphate

b) blue litmus paper

c) anyhydrous zinc sulphate

d) hydrous potassium carbonate


(Q6) A staining technique that requires a mordant is:

a) indirect staining

b) supra vital staining

c) metallic impregnation

d) elective solubility


(Q7) Autopsies for histological examination are obtained from:

a) surgical clinics

b) theatres

c) medical wards

) mortuaries


(Q8) The staining technique for the exfoliated cell is:

a) perl Prussian blue

b) papanicolau

c) manson Fontana

d) haematoxylin-eosin


(Q9) A suitable thickness for tissue slices for processing is:

a) 3-5 mm

b) 5-8 mm

c) 1-3 mm

d) 8-10 mm


(Q10) The process of washing tissue sections in warm water before attachment onto slides:

a) Removes air

b)Melts paraffin wax

c) Provides more adhesion

d) Flattens the tissue


(Q11) Smears from the cervix for cytological investigations are collected using:

a) Uterine spoon

b) Applicator sticks

c) Platinium wire loop

d) Arge spatula


(Q12) Malaria pigments cannot be found in the following body organ:

a) Spleen

b) Liver

c) Brain

d) Skin


(Q13) Which of the following fixatives makes tissues radio-opaque:

a) Ethanol

b) Picric acid

c) Formaldehyde

d) Mercuric chloride


(Q14) Which of the following natural dyes is obtained from a flower crocus sativas:

a) Litmus

b) Orcein

c) Carmine

d) Saffron


(Q15) The fixative of choice for cytological smears is:

(a)10% ethanol

(b)5% ethanol

c) 95% ethanol

d) 10% formal saline


(Q16) In the ripening process, all the following can be used to change hematoxylin to haematin EXCEPT:

a) Calcium chloride

b) Sodium iodate

c) Potassium nitrate

d) Hydrogen peroxide


(Q17) The following are essential qualities of a container for histological specimens EXCEPT:

a) it should hold at least 5 times the volume of the specimen

b) it must be wide-mouthed

c) it must be transparent

d) it must be leakproof


(Q18) One of the following would protect laboratory personnel from aerosol induced respiratory tract hazards?

a) Autoclave

b) Gloves

c) Hot air oven

d) Fume chamber


(Q19) The following microtomes use knives made of stainless steel EXCEPT:

a) Rotary

b) Base sledge

c) Freezing

d) Ultra thin


(Q20) The following is not a Romanowski dye:

a) Leishman stain

b) May-Grunwald

c) Giemsa stain

d) Gram stain