Clinical Chemistry Theory Paper

  1. Occult blood can be detected:

a) In blood

b) In stool

c) Only when the patient has diarrhea

d) Using orthotolidine test

e) After a heavy meal


2. Bence-Jones proteins are:

a) Soluble at 1000C

b) Precipitate at 1000C

c) Precipitate between 400C-600C

d) Are sulphosalicylic acid positive

e) Are boiling test positive


3. Negatively charged particles in an atom are called:-

a) Cations

b) Electrons

c) Anions

d) Isotopes


4. The pH of a solution can be maintained at a chosen value through:

a) Catalysis

b) Hydrolysis

c) Alkalation

d) Buffering


5. The pH of pure water is:

a) 6.0

b) 7.0

c) 6.50



6. Using haemolysed blood samples in analyses is avoided because:

a) It gives false increase to some analytes

b) It improves absorbance

c) Bilirubin is not affected

d) Apparatus get damaged


7. The proteins comprise the following:

a) Globulins and albumin

b) Globulins and myoglobin

c) Mycoglobin and albumin

d) Albumin and phosphates



8. The functional unit of the kidney is a:

a) Medulla

b) Nephron

c) Cortex

d) Capsule


9. Excess passage of urine is called:

a) Anuria

b) Polyuria

c) Asthenoguria

d) Oliguria


10. To determine creatinine clearance, the samples to be analysed include urine and:

a) Blood

b) Stool

c) Urine

d) CSF


11. The appearance of urine may be altered in the following conditions

a) Obstructive jaundice

b) Hypertension

c) Cardiac failure

d) Anuria


12. Conjugated proteins include:

a) Glutamic acid

b) Haemoglobin

c) Cholesterol

d) Glycerol


13. A normal C.S.F sample contains the following EXCEPT:

a) Erythrocytes


c) Chlorides

d) Glucose


14. Human chorionic gonadotrophin hormone is secreted during:

a) Menstruation

b) Sleep

c) Pregnancy

d) Weddings

e) Mating


15. At pH3 and in the presence of proteins Bromocresol green indicator changes colour from:

a) Red to Yellow

b) Yellow to Green

c) Yellow to Blue

d) Colourless to Green


16. Flames emission photometry can be used in the estimation of

a) Barium

b) Oxalates

c) Potassium

d) Chloride

e) Sodium


17. Glucose is oxidized by atmospheric oxygen in the presence of glucose oxidase enzyme to:

a) Gluconic acid

b) Keto sugar

c) Amino sugar

d) Osazones

e) Mucin


18. Diabetes mellitus differs from diabetes insipidus because the SG of urine in the former is:

a) Higher

b) Lower

c) Normal

d) Cannot be measured

e) Not of diagnostic value


19. The detection of chlorides in urine using silver nitrate is based on the:

a) Precipitation of Cl-

b) Neutralization of Cl-

c) Absorption of Cl-

d) Adsorption of Cl-

e) Assimilation of Cl-