A Patient Has Low Levels of T3 and T4

question 17

Multiple Choice

A patient has low levels of T3 and T4. You test for TSH and find it is elevated. You conclude that

• A) Iodine deficiency is the cause of low T3 and T4 levels
• B) End-organ unresponsiveness to TSH caused the low T3 and T4 levels
• C) The patient has normal hypothalamic-pituitary function
• D) The thyroid gland can’t concentrate iodine
• E) The problem lies in organification of the thyroglobulin

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Definitions:

Categorical

Pertaining to data or variables that represent categories, qualities, or characteristics without inherent numerical value.

Nominal

Refers to data that can be categorized into named groups that do not imply any rank or order among them.

Nominal

A term describing a scale of measurement where numbers serve as labels for identification or classification, without any quantitative value.

Ordinal

Relating to a category of data measurement levels that reflects the order of the values, but not the difference between them.