Hematology Flashcards
6 cards from real Medical Technologist Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Hematology flashcards as text
Which white blood cell type is the first to respond to a bacterial infection?
Answer: Neutrophil
Neutrophils are the primary phagocytic cells that migrate to sites of bacterial infection within hours.
What is the normal mean corpuscular volume (MCV) range in adults?
Answer: 80–100 fL
Normal MCV is 80–100 fL; values outside this range indicate microcytic or macrocytic anemia.
A peripheral blood smear showing target cells is MOST associated with which condition?
Answer: Hemoglobin C disease
Target cells (codocytes) are classically associated with hemoglobin C disease, liver disease, and thalassemia.
Which laboratory finding is characteristic of disseminated intravascular coagulation (DIC)?
Answer: Prolonged PT and aPTT with low platelets
DIC is characterized by prolonged PT, prolonged aPTT, thrombocytopenia, elevated D-dimer, and decreased fibrinogen.
Hypersegmented neutrophils on a peripheral smear are a hallmark of which deficiency?
Answer: Folate or vitamin B12 deficiency
Hypersegmented neutrophils (>5 lobes) indicate megaloblastic anemia caused by folate or vitamin B12 deficiency.
Which stain is used to confirm the presence of reticulocytes in a blood smear?
Answer: New methylene blue
New methylene blue is a supravital stain that precipitates RNA in reticulocytes, making them identifiable.