MLPAO Exam Set| 995 Questions| Accurate Answers(RATED A)
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Course
MLPAO
Institution
MLPAO
Which of the following is the counterstain for the gram stain method?
- crystal violet
- safranin
- acetone-alcohol
- iodine
- gentian-violet - ANSWER safranin
Most fixatives act by:
- precipitating calcium ions in cells
- precipitating cell wall
- precipitating carbohydrates in cells...
MLPAO Exam Set| 995 Questions| Accurate Answers(RATED A)
Which of the following is the counterstain for the gram stain method?
- crystal violet - safranin - acetone-alcohol
- iodine - gentian-violet - ANSWER 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 - ANSWER precipitating cell wall
A Westergren tube is used for which test procedure?
- prothrombin time - hematocrit - platelet count - erythrocyte sedimentation rate - reticulocyte count - ANSWER 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 - ANSWER Regulation of body temperature
A Gaspack/candle jar can be used to produce:
- an aerobic environment - an anaerobic environment - more vacuum - a vacuum - two of the above - ANSWER An Anaerobic Environment
Exchange of Oxygen and nutrients take place via:
- lymphatic vessels
- arteries - arterioles - capillaries - venules - ANSWER 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 - ANSWER Graduated Cylinder
The range of pH is:
- 1-14
- 1-7
- 1-12
- 0-12
- 0-14 - ANSWER 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 - 20 time less acidic than
- 1000 times more acidic than - ANSWER 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 - ANSWER 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 - ANSWER Disinfectant
Tissues are generally embedded in paraffin wax so that they may be:
- decalcified
- cut into sections - dehydrated - fixed - stained - ANSWER Cut into Sections The pipette with a bulged middle section is a:
- mohr pipette - serological pipette - micro pipette - volumetric pipette - broken pipette - ANSWER Volumetric Pipette
A patient asks you to tell him his test results.. You should,
- ask him to check with his physician - tell him the results are not ready
- tell him his results - refuse to discuss the subject - only tell him if results are normal - ANSWER 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 - ANSWER Fibrinogen
What tube would be drawn if a physician requested a heterophile antibody screen?
- green -grey - lavender - SST - light blue - ANSWER 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 - ANSWER 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 - ANSWER To determine proportion of different white cells in whole blood
A dark yellow or amber colored serum is called:
- created - lipemic
- icteric - jaundiced - hemolyzed - ANSWER Icteric
100 mL of 20% hydrochloric acid will make what volume of 4% hydrochloric acid?
- 500 ml
- 50 ml - 1000 mL
- 100 mL
- 80 mL - ANSWER 500 mL
Anticoagulant therapy is monitored by performing a(n):
- ESR (Erythrocyte sedimentation rate)
- CBC (Complete blood count)
- PT (prothrombin time)
- FBS (fasting blood sugar)
- Hgb (Hemoglobin) - ANSWER PT (prothrombin time)
The layer above a sediment in a solution is the:
- supernatant - solution - suspension - buffy coat - ANSWER Supernatant
A buffer is:
- a pair of weak base with its conjugate(weaker) acid
- a pair of weak acid with its conjugate(weaker) base
- resist changes in pH when add acid or base - an aqueous solution - all of the above - ANSWER All of the above
Beta hemolysis causes:
- a green discoloration around colonies on blood agar(alpha)
- a completely clear zone around colonies on blood agar - the death of bacteria
- normal autolysis of blood cells
- none of the above (gamma = no changes in agar) - ANSWER A completely clear zone around colonies on blood agar
Stool concentration method concentrates which of the following:
- parasites - ova - white blood cell
- red blood cells
- all of the above
- a and be are correct - ANSWER a and b are correct
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