The CDC Defines Three CD4⁺ T Cell Categories of T

question 5

Multiple Choice

The CDC defines three CD4⁺ T cell categories of T cell ranges.Which values are correct?

• A) In category 1, the CD4⁺ T cell count is greater than or equal to 500/ml.
• B) In category 1, the CD4⁺ T cell counts range from 200 to 499/ml.
• C) In category 2, the CD4⁺ T cell counts range from 200 to 499/ml.
• D) In category 3, the CD4⁺ T cell count is less than 200/ml.
• E) In category 3, the CD4⁺ T cell count is less than 300/ml.

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Definitions:

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or touched, a concept important in the cognitive development of infants.

Egocentrism

A cognitive bias characterized by the inability to differentiate between one's own perspective and another person's perspective.

Conservation

A principle in cognitive development where a child recognizes that quantity does not change with physical rearrangement.

Theory of Mind

The skill to recognize and assign mental states such as beliefs, intentions, desires, imaginings, and understanding to oneself and others, while also comprehending that others possess their own unique beliefs, desires, and intentions that may not align with one's personal views.