Question 1

Dolichos biflorus

Options :

A : A qualitative disorder of erythroid, myeloid and/ or megakaryoctic cell series

B : Acute monoblastic leukemia

C : Acute myeloblastic leukemia without maturaation

D : AntiA1 lectin is extracted from the seeds of Dolichos biflorus. This reagent will agglutinate A1 cells, but not A2 cells

Answer: D

Question 2

The reason carbon monoxide is so toxic is because it

Options :

A : is a protoplasmic poison

B : has 200 times the affinity of oxygen for hemoglobin binding sites

C : combines with cytochrome oxidase

D : sensitizes the myocardium

Answer: B

Question 3

In disk diffusion susceptibility testing, as an antimicrobial agent diffuses away from the disk, the concentration of antibiotic is

Options :

A : Inoculum dependent

B : Unchanged

C : Decreased

D : Increased

Answer: C

Question 4

T lymphocytes

Options :

A : Bone marrow shows foam cells ranging from 20100um in size, vacuolated cytoplasm containing sphingomyelin and is faintly PAS +

B : Cells likely identified in lesions of mycosis fungoides

C : Stain used to differentiate acute myelocytic from acute lymphocytic leukemia

D : Cell series most readily identified by a positive Sudan black B

Answer: B

Question 5

What is the platelet absolute normal?

Options :

A : 150300000

B : 150400000

C : 200400000

D : 200300000

Answer: B