Thyroid Disorders Flashcards
- What is the most common type of laboratory assay that
is widely used to assess thyroid hormone concentrations?
a. Ultrafiltration
b. Immunoassay
c. Potentiometry
d. Estimation from using a formula
b. Immunoassay
- What stimulates the uptake of iodide by the thyroid gland
for thyroid hormone synthesis?
a. Thyroid-stimulating hormone (TSH)
b. Thyroxine (T4)
c. Tyrosine
d. Thyroiditis
a. Thyroid-stimulating hormone (TSH)
- What causes primary hypothyroidism?
a. The absence or dysfunction of the thyroid gland
b. Increased TSH
c. A pituitary disorder
d. A hypothalamus disorder
a. The absence or dysfunction of the thyroid gland
- Hyperthyroidism is also referred to as
a. Athyreosis
b. Myxedema
c. Thyrotoxicosis
d. Exophthalmos
c. Thyrotoxicosis
- What is the function of thyroid hormones?
a. Inhibit the secretion of growth hormone
b. Solely regulate reproductive processes in male and
females
c. Maintain water homeostasis
d. Regulate carbohydrate, lipid, and protein metabolism
within cells
d. Regulate carbohydrate, lipid, and protein metabolism
within cells
- Secondary (or central) hypothyroidism is indicated by
which of the following sets of lab results?
a. Increased T4, and decreased TSH
b. Increased T4, and increased TSH
c. Decreased T4, and increased TSH
d. Decreased T4, and decreased TSH
d. Decreased T4, and decreased TSH
- The thyroid gland produces all of the following hormones
except which of the following hormones?
a. TSH
b. Calcitonin
c. Thyroxine (T4)
d. Triiodothyronine (T3)
a. TSH
- What is the amino acid precursor of T4?
a. Threonine
b. Tyrosine
c. Thyronine
d. Alanine
b. Tyrosine
- What is the technique of choice to measure T3 in body
fluids?
a. Nephelometry
b. Potentiometry
c. Immunoassay
d. Atomic absorption
c. Immunoassay
- Which of the following analytes is most sensitive for the
early detection of primary thyroid gland failure?
a. Thyroxine (T4)
b. TSH
c. Thyroglobulin (Tg)
d. Thyroid-binding globulin (TBO)
b. TSH
