The Average Lifespan of a Red Blood Cell Is

question 46

Multiple Choice

The average lifespan of a red blood cell is

• A) 1 month.
• B) many years.
• C) about 1 year.
• D) 4 months.
• E) 24 hours.

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Definitions:

Cryoglobulin Levels

The concentration of cryoglobulins in the blood, proteins that precipitate or clump together at low temperatures, associated with certain infectious, autoimmune, or chronic inflammatory conditions.

Ionized Calcium

The fraction of calcium in the blood that is not attached to proteins, important for many body functions including muscle contraction and blood clotting.

Lactic Acid

A metabolic byproduct produced by the body during anaerobic respiration, contributing to muscle fatigue and soreness post-exercise.

Distal Pulse

A pulse taken far from the trunk of the body, such as at the wrist or foot, indicating the flow of blood to these areas.