Question 1

TdT

Options :

A : increased vasocontriction

B : Heavy chains

C : Susceptible to bacitracin (A) and resistant to furazolidone; gram positive cocci in tetras, bacteria cells of micrococcus luteus are larger than those of the staphylococci and can arrange in tetras

D : TdT will stain lymphoblasts psitive and myeloblasts negative

Answer: D

Question 2

The degree to which the kidney concentrates the glomerular filtrate can be determined by

Options :

A : urine to serum osmolality ratio

B : urine creatine

C : serum creatinine

D : creatinine clearance

Answer: A

Question 3

Quality control results for disk diffusion susceptibility tests yield the following results aminoglycoside zones too small and penicillin zones too large. This is most likely due to the

Options :

A : Inoculum being too heavy

B : Inoculum being too light

C : pH of MuellerHinton agar being too low

D : calcium and magnesium, concentration in the agar being too high

Answer: C

Question 4

Neutrophil

Options :

A : Used to stain neutral fats, phospholipids and sterols

B : Cell type shows the most intense staining with peroxidase

C : Substrate used for the detection of specific esterase

D : Chemical test for the diagnosis of hairy cell leukemia

Answer: B

Question 5

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