Why Is Anti-Le^bL the Antibody of Choice When Phenotyping Red

question 39

Multiple Choice

Why is anti-Le^bL the antibody of choice when phenotyping red blood cells?

• A) It reacts best with O and A₂ cells.
• B) It is dependent on the ABH antigens.
• C) It is neutralized by H substance.
• D) It recognizes any Le^b antigen independent of ABO type.

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Definitions:

Hypothalamus

A region of the brain responsible for hormone production and regulation of vital bodily functions, including temperature, hunger, and thirst.

Thalamus

In vertebrates, the portion of the diencephalon that passes on selected sensory information to the cerebrum.

Cerebrospinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, playing a critical role in protecting these structures and maintaining their environment.

Ventricles

Chambers of the heart that receive blood from the atria and contract to propel blood out of the heart into the arteries.