MLPAO Hematology and Coagulation Fundamentals

Question 1

What is the normal adult reference range for hemoglobin in males?

Accepted Answer

130-170 g/L

Answer

100-120 g/L

Answer

150-200 g/L

Answer

110-140 g/L

Question 2

Which anticoagulant is used in tubes for the complete blood count (CBC)?

Accepted Answer

EDTA (ethylenediaminetetraacetic acid)

Answer

Sodium citrate

Answer

Lithium heparin

Answer

Sodium fluoride

Question 3

What does the mean corpuscular volume (MCV) measure?

Accepted Answer

The average size (volume) of red blood cells

Answer

The average hemoglobin content per red blood cell

Answer

The variation in red blood cell size

Answer

The average hemoglobin concentration within red blood cells

Question 4

Which cell type is the precursor to platelets?

Accepted Answer

Megakaryocyte

Answer

Myeloblast

Answer

Reticulocyte

Answer

Monoblast

Question 5

What is the principle of impedance-based cell counting used in hematology analyzers?

Accepted Answer

Cells passing through an aperture cause a change in electrical resistance proportional to their volume

Answer

Cells are stained and counted by optical absorption

Answer

Cells scatter light at different angles depending on their type

Answer

Cells are labeled with fluorescent antibodies and counted by flow cytometry

Question 6

Which condition is characterized by the presence of target cells (codocytes) on a peripheral blood smear?

Accepted Answer

Thalassemia and liver disease

Answer

Iron deficiency anemia only

Answer

Megaloblastic anemia

Answer

Immune hemolytic anemia