Which of the Following Best Describes the Effect of Aging

question 54

Multiple Choice

Which of the following best describes the effect of aging on the immune system? 

• A) Immunity is improved by abundant intake of iron-rich red meats and calcium-rich butter. 
• B) In the United States, infectious diseases rarely cause of deaths in the elderly. 
• C) Immune function does not decline with age in people who maintain good nutrition. 
• D) Antibiotics are often ineffective in treating infections in older people who have deficient immune systems. 
• E) In elderly persons, nutritional status rarely influences immune functioning.

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Definitions:

Erythrocyte

A red blood cell that is responsible for carrying oxygen throughout the body.

Hematocrit

A measure of the volume percentage of red blood cells in blood, used to detect anemia, dehydration, and other conditions.

Erythrocytes

Red blood cells that carry oxygen from the lungs to the body tissues and carbon dioxide back to the lungs.

Anemic Cells

Anemic cells refer to blood cells, typically red blood cells, that are deficient in hemoglobin, leading to reduced oxygen transport and symptoms of anemia.