MLPAO Exam Set Questions With Verified Answers
|2026/2027 Update | A+ Graded
Which of the following is the counterstain for the gram stain method?
- crystal violet
- safranin
- acetone-alcohol
- iodine
- gentian-violet
safranin
Most fixatives act by:
- precipitating calcium ions in cells
- precipitating cell wall
- precipitating carbohydrates in cells
- precipitating enzymes in the cells
- none of the above
precipitating cell wall
A Westergren tube is used for which test procedure?
- prothrombin time
- hematocrit
- platelet count
- erythrocyte sedimentation rate
- reticulocyte count
Erythrocyte Count
Which of the following is the best examples of homeostasis?
- sexual reproduction
- growth
- regulation of body temperature
- growth of hair under arms
- storage of fat as adipose
Regulation of body temperature
1|Page
,A Gaspack/candle jar can be used to produce:
- an aerobic environment
- an anaerobic environment
- more vacuum
- a vacuum
- two of the above
An Anaerobic Environment
Exchange of Oxygen and nutrients take place via:
- lymphatic vessels
- arteries
- arterioles
- capillaries
- venules
Capillaries
MLA is going to prepare 70.5 mL of a solution with 90% concentration. Best glassware used to
make this:
- volumetric flask
- erlenmeyer cylinder
- beaker
- graduated cylinder
- none of the above
Graduated Cylinder
The range of pH is:
- 1-14
- 1-7
- 1-12
- 0-12
- 0-14
0-14
A pH of 2 is _________ a pH of 5
- 1000 times less acidic than
- 100 time more acidic than
- 2 times less acidic than
2|Page
,- 20 time less acidic than
- 1000 times more acidic than
1000 Times more acidic than
A blood glucose is preferred to be done on:
- a whole blood using sodium citrate
- clotted blood
- whole blood using oxalate and sodium fluoride as an anticoagulant
- a finger prick specimen
- urine
Whole blood using oxalate and sodium fluoride as an anticoagulant
What is the name give to a substance that kills disease causing microorganisms but not spores
and is used on inanimate object?
- disinfectant
- antiseptic
- antibiotic
- fungicide
Disinfectant
Tissues are generally embedded in paraffin wax so that they may be:
- decalcified
- cut into sections
- dehydrated
- fixed
- stained
Cut into Sections
The pipette with a bulged middle section is a:
- mohr pipette
- serological pipette
- micro pipette
- volumetric pipette
- broken pipette
Volumetric Pipette
A patient asks you to tell him his test results.. You should,
- ask him to check with his physician
3|Page
, - tell him the results are not ready
- tell him his results
- refuse to discuss the subject
- only tell him if results are normal
Ask him to check with his physician.
A plasma protein involved in clotting is:
- immunoglobulin
- gamma globulin
- albumin
- fibrinogen
- unable to determine with information given
Fibrinogen
What tube would be drawn if a physician requested a heterophile antibody screen?
- green
-grey
- lavender
- SST
- light blue
SST
Which statement is false regarding setting up an ESR test?
- it must be read in 1 hour
- it can be located near a centrifuge
- it should be filled to exactly the zero mark
- it should be performed on fresh blood
- it must be set up vertically
It can be located near a centrifuge
What is the purpose of a white blood cell differential?
- to determine proportion of red cells to white cells in whole blood
- to determine white cell count in whole blood
- to determine proportion of different white cells in whole blood
- to diagnose anemia
To determine proportion of different white cells in whole blood
4|Page
|2026/2027 Update | A+ Graded
Which of the following is the counterstain for the gram stain method?
- crystal violet
- safranin
- acetone-alcohol
- iodine
- gentian-violet
safranin
Most fixatives act by:
- precipitating calcium ions in cells
- precipitating cell wall
- precipitating carbohydrates in cells
- precipitating enzymes in the cells
- none of the above
precipitating cell wall
A Westergren tube is used for which test procedure?
- prothrombin time
- hematocrit
- platelet count
- erythrocyte sedimentation rate
- reticulocyte count
Erythrocyte Count
Which of the following is the best examples of homeostasis?
- sexual reproduction
- growth
- regulation of body temperature
- growth of hair under arms
- storage of fat as adipose
Regulation of body temperature
1|Page
,A Gaspack/candle jar can be used to produce:
- an aerobic environment
- an anaerobic environment
- more vacuum
- a vacuum
- two of the above
An Anaerobic Environment
Exchange of Oxygen and nutrients take place via:
- lymphatic vessels
- arteries
- arterioles
- capillaries
- venules
Capillaries
MLA is going to prepare 70.5 mL of a solution with 90% concentration. Best glassware used to
make this:
- volumetric flask
- erlenmeyer cylinder
- beaker
- graduated cylinder
- none of the above
Graduated Cylinder
The range of pH is:
- 1-14
- 1-7
- 1-12
- 0-12
- 0-14
0-14
A pH of 2 is _________ a pH of 5
- 1000 times less acidic than
- 100 time more acidic than
- 2 times less acidic than
2|Page
,- 20 time less acidic than
- 1000 times more acidic than
1000 Times more acidic than
A blood glucose is preferred to be done on:
- a whole blood using sodium citrate
- clotted blood
- whole blood using oxalate and sodium fluoride as an anticoagulant
- a finger prick specimen
- urine
Whole blood using oxalate and sodium fluoride as an anticoagulant
What is the name give to a substance that kills disease causing microorganisms but not spores
and is used on inanimate object?
- disinfectant
- antiseptic
- antibiotic
- fungicide
Disinfectant
Tissues are generally embedded in paraffin wax so that they may be:
- decalcified
- cut into sections
- dehydrated
- fixed
- stained
Cut into Sections
The pipette with a bulged middle section is a:
- mohr pipette
- serological pipette
- micro pipette
- volumetric pipette
- broken pipette
Volumetric Pipette
A patient asks you to tell him his test results.. You should,
- ask him to check with his physician
3|Page
, - tell him the results are not ready
- tell him his results
- refuse to discuss the subject
- only tell him if results are normal
Ask him to check with his physician.
A plasma protein involved in clotting is:
- immunoglobulin
- gamma globulin
- albumin
- fibrinogen
- unable to determine with information given
Fibrinogen
What tube would be drawn if a physician requested a heterophile antibody screen?
- green
-grey
- lavender
- SST
- light blue
SST
Which statement is false regarding setting up an ESR test?
- it must be read in 1 hour
- it can be located near a centrifuge
- it should be filled to exactly the zero mark
- it should be performed on fresh blood
- it must be set up vertically
It can be located near a centrifuge
What is the purpose of a white blood cell differential?
- to determine proportion of red cells to white cells in whole blood
- to determine white cell count in whole blood
- to determine proportion of different white cells in whole blood
- to diagnose anemia
To determine proportion of different white cells in whole blood
4|Page
