Why Do Signs and Symptoms of Decreased Thyroxine Concentration Not

question 109

Multiple Choice

Why do signs and symptoms of decreased thyroxine concentration not appear until about a week after a thyroidectomy (surgical removal of the thyroid gland) ?

• A)About a week's worth of thyroxine is stored in the liver.
• B)About a week's worth of thyroxine is stored in the anterior pituitary gland.
• C)Most of the thyroxine is bound to proteins in the bloodstream and the hormones are released gradually.
• D)The parathyroid glands can take over function of the thyroid gland for a short period of time.
• E)The anterior pituitary gland can start producing thyroxine.

---

Definitions:

Y-intercept

The point where a line, curve, or surface intersects the y-axis of a coordinate system.

Partial Regression Slope Coefficients

Parameters in a multiple regression model that represent the individual effect of each independent variable on the dependent variable, holding all other variables constant.

Standard Error of Estimate

A statistical measure that provides an estimation of the standard deviation of the error term in a regression model, indicating the accuracy of predictions.

Coefficient of Determination

A measure in statistical models that indicates the proportion of the variance in the dependent variable predictable from the independent variables, often symbolized as \(R^2\).