Q: Which of the following equations best represents the calculation of blast percentage in bone marrow, a key criterion for remission in acute leukemia?

$$\frac{\text{Number of blast cells}}{\text{Total number of nucleated cells}} \times 100$$

Question 1

Which of the following best describes the function of monocytes and macrophages in the blood?

Accepted Answer

They engulf and destroy foreign particles and cellular debris.

Question 2

A patient undergoing chemotherapy develops a critically low white blood cell count. Which of the following precautions is MOST important to reduce infection risk?

Accepted Answer

Implement strict hand hygiene and avoid raw foods.

Question 3

Which hematopoietic tissue is primarily responsible for the formation of new blood cells after birth?

Accepted Answer

Bone marrow

Question 4

Aplastic anemia is characterized by which of the following?

Accepted Answer

Failure to produce enough blood cells in the bone marrow

Question 5

Which of the following is the hallmark diagnostic feature of Hodgkin disease?

Accepted Answer

Presence of Reed-Sternberg cells in lymph node biopsy

Question 6

Which chromosomal abnormality is most commonly associated with chronic myelogenous leukemia (CML)?

Accepted Answer

Philadelphia chromosome translocation

Question 7

Which of the following equations best represents the calculation of blast percentage in bone marrow, a key criterion for remission in acute leukemia?

Accepted Answer

$$\frac{	ext{Number of blast cells}}{	ext{Total number of nucleated cells}} 	imes 100$$

Question 8

A patient presents with fever, sore throat, and generalized lymphadenopathy. Blood tests reveal atypical lymphocytes. Which virus is most likely responsible?

Accepted Answer

Epstein-Barr virus (EBV)

Question 9

Which of the following statements about leukemic cells is TRUE?

Accepted Answer

They interfere with the maturation of normal blood cells.

Question 10

Which of the following is a complication specifically associated with acute leukemia?

Accepted Answer

Leukostasis

Question 11

Which category of lymphoma is most likely to present as a single node or chain of nodes and is more curable?

Accepted Answer

Hodgkin disease

Question 12

Which of the following is NOT a typical sign or symptom of neutropenia?

Accepted Answer

Increased platelet count

Question 13

Which of the following treatments is used exclusively for non-Hodgkin lymphoma (NHL) and not for Hodgkin disease?

Accepted Answer

Monoclonal antibodies

Question 14

Which of the following best explains why constant renewal of white blood cells is necessary?

Accepted Answer

WBCs have a relatively short life span.

Question 15

A patient with multiple myeloma is most likely to present with which of the following clinical findings?

Accepted Answer

Bone pain and fractures

Question 16

Which of the following is a major theme in the pathogenesis of neoplastic disorders of hematopoietic and lymphoid origin?

Accepted Answer

Abnormal growth of new cells from tumor or mass

Question 17

Which of the following is a common cause of drug-induced granulocytopenia?

Accepted Answer

Chemotherapy medications

Question 18

Which of the following best describes the difference between Hodgkin disease and non-Hodgkin lymphoma?

Accepted Answer

Non-Hodgkin lymphoma spreads to anatomically contiguous nodes and lacks Reed-Sternberg cells.

Question 19

Which of the following cell types is derived from the myeloid stem cell in the bone marrow?

Accepted Answer

Granulocytes

Question 20

A patient with acute myeloid leukemia (AML) is most likely to have which of the following laboratory findings?

Accepted Answer

High number of immature myeloid blasts in the blood

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