Question

Which individuals are likely to develop vitamin B12 anemia? Select all that apply.

Option 1: An older adult patient
Option 2: A premenopausal patient
Option 3: A patient with a recent gastrointestinal (GI) resection
Option 4: A patient who is a long-term vegetarian
Option 5: A patient with blood loss following an accident

Answer 1

Vitamin B12 anemia is more likely to affect older adults, individuals with recent GI resections, and long-term vegetarians. It stems from inadequate absorption or intake of vitamin B12, which is crucial for proper red blood cell formation.

Step-by-step explanation:

Individuals who are likely to develop vitamin B12 anemia include:

• An older adult patient: Older adults can have decreased stomach acid production, which is necessary for B12 absorption.
• A patient with a recent gastrointestinal (GI) resection: Surgery can directly affect the ability to absorb B12.
• A patient who is a long-term vegetarian: Vegetarians may not consume enough B12 since it is primarily found in animal products.

Pernicious anemia is a specific type of B12 anemia caused by the poor absorption of this vitamin, often from conditions like Crohn's disease and surgical removal of parts of the stomach or intestines. Iron deficiency anemia, commonly found in teens, children, and vegans, also involves a lack of B12, although this deficiency combined with insufficient iron intake differs from strictly B12 anemia.