What is the term for a condition characterized by a deficiency of vitamin B12, leading to the production of abnormally large red blood cells?

A Megaloblastic anemia ✓
B Iron deficiency anemia
C Pernicious anemia
D Sickle cell anemia

Explanation

Megaloblastic anemia is a condition where the bone marrow produces large, immature red blood cells due to a deficiency of vitamin B12 or folate.

Mnemonic

Mega = large, blast = immature cell

Source

Robbins and Cotran Pathologic Basis of Disease
Hematology Hematology: Anemia Hematology: Anemia Medium MEDICAL Confidence: high