Question 1

Temperature allowed for blood donation is

Options :

A : not greater than 99 degrees

B : not greater than 98.5 degrees

C : not greater than 99.5 degrees

D : not greater than 98 degrees

Answer: C

Question 2

If a bacteria produces the enzyme tryptophanase to break down the amino acid tryptophan, which of the following tests will be positive with Kovacs reagent?

Options :

A : Basophiles

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

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

D : Indole test

Answer: D

Question 3

M7 is also known as

Options :

A : Myeloblast without differentiation

B : Myeloblast with minimal maturation

C : Megakaryocytic (megakaryocytic leukemia)

D : Myeloblast with maturation

Answer: C

Question 4

Chloroacetate

Options :

A : Chemical test for the diagnosis of hairy cell leukemia

B : Substrate used for the detection of specific esterase

C : typically detected in normal myeloid cells, are expressed on the surface of hairy cell leukemia lymphocytes

D : is expressed on neoplastic plasma cells and is useful in the diagnosis of myeloma

Answer: B

Question 5

SPS is used as an anticoagulant for blood cultures because it

Options :

A : Inactivates penicillin and cephalosporins

B : Prevents clumping of red cells

C : Inactivates neutrophils and components of serum complement

D : Facilitates growth of anaerobes

Answer: C

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