Overview of Anemia and Related Conditions

These flashcards indicate key concepts and definitions related to anemia and its various forms, causes, and physiological effects.

What causes defective red blood cells in anemia?

Defective red blood cells may result from mutations in hemoglobin or other structural defects.

What shape do normal red blood cells have?

Normal red blood cells have a biconcave disc shape.

What happens to red blood cells when they become deoxygenated?

They change shape and may become more susceptible to rupture.

What is the lifespan of abnormal red blood cells associated with certain anemias?

Abnormal red blood cells may live only 10 to 20 days instead of the typical 120 days.

What is hyperproductive red bone marrow?

It is the increased production of red blood cells due to high turnover in anemia.

What is tissue hypoxia?

It is a deficiency in the amount of oxygen reaching the tissues.

What condition results from occlusion of small arteries in anemia?

Tissue damage and loss of function occur due to blockage of blood flow.

Define hemolysis in the context of anemia.

Hemolysis refers to the destruction of red blood cells.

What is ineffective erythropoiesis?

Ineffective erythropoiesis is the inability to produce adequate red blood cells.

What is the result of iron deficiency in anemia?

Iron deficiency leads to microcytic hypochromic red blood cells.

What physical change in red blood cells indicates chronic bleeding in females?

Females may experience spoon-shaped red blood cells due to significant blood loss.

What is glossitis?

Glossitis is the inflammation of the tongue often associated with deficiencies.

What is pica in the context of iron deficiency?

Pica is a craving for non-food items, such as ice or soil, due to iron deficiency.

What are the dietary sources of Vitamin B12?

Vitamin B12 is found in meat, eggs, and dairy products.

What happens to myelin in the absence of Vitamin B12?

Loss of myelin in the spinal column occurs, affecting sensation and coordination.

What is aplastic anemia?

Aplastic anemia is due to the destruction of red bone marrow, leading to reduced blood cell production.

What does pancytopenia mean?

Pancytopenia refers to a reduction in red blood cells, white blood cells, and platelets.

What can cause acquired aplastic anemia?

Acquired aplastic anemia can result from drugs, radiation, or infections like hepatitis C.

What is needed for effective red blood cell production?

Iron and adequate levels of Vitamin B12 and folate are necessary for production.

How do folate and B12 deficiencies differ?

Folate and B12 are separate components, with different dietary sources and deficiency effects.

What is the role of bone marrow in red blood cell production?

Bone marrow produces red blood cells, and its dysfunction leads to various forms of anemia.

What are typical symptoms of anemia?

Typical symptoms include fatigue, pallor, shortness of breath, and increased heart rate.

What is the impact of chronic illness on red blood cell production?

Chronic illness can affect erythropoiesis, often leading to anemia.

What laboratory findings are expected in patients with anemia?

Patients may present with low hemoglobin levels, microcytic red blood cells, or inadequate reticulocyte counts.

What compensatory mechanism occurs in response to anemia?

The body may attempt to compensate by increasing heart rate and respiratory rate.

What types of anemia can result from nutritional deficiencies?

Nutritional deficiencies can lead to iron deficiency anemia, folate deficiency anemia, and B12 deficiency anemia.